Chapter 1. Difference between action for nullity and exception of nullity
Before going into the heart of the matter, let's look at a point of civil procedure that will be useful for the future.
The action (here, in nullity) is a procedure initiated before a jurisdiction to obtain the respect or the recognition of a right or a legitimate interest (here, the recognition that the patent is null).
A plea of nullity is, in law, an argument which is raised even before referring to the merits of the case, and which tends to see the annulment of a part of the proceedings or, possibly, the whole of the proceedings, because of the violation by one of the parties of an essential provision of law (here in this case, the existence of the patent). In case of admission of the exception of nullity, the piece (here the patent) is removed from the debates and can no longer base the judgment.
You still did not see the difference?
So, here is the "non-legal" explanation that I give sometimes:
- a nullity exception is a kind of joker:
- "Stop, Judge, because the patented villain is in fact no patent since the latter is nil";
- This is not a request, but a finding that will make the infringement action irrelevant;
- No decision as to the invalidity of the patent will be rendered but a decision will find the lack of basis for the action for infringement;
- a counterclaim in nullity is a real request:
- "Judge, I ask that before declaring me responsible for infringement, you notice that his patent is null";
- This request for invalidity will make the action for infringement also without object,
- A decision as to the invalidity of the patent will be rendered.
This may seem like a detail ... but concerning the prescription, you will see that it changes everything (well probably more since the Pact Act but let's move on).
Chapter 2. The action in nullity
Section 2.1. Mainly
2.1.2. Competent courts
The Paris Court of Appeal has jurisdiction on appeal (Court of Appeal of Paris, Pole 5, 1st ch., June 20, 2012).
2) Clarification of the jurisdiction of the Courts of Appeal since November 1, 2009
The application of the 2009 decree granting exclusive jurisdiction to the Paris Court of Law on patent issues has raised questions to determine the competent court of appeal in case of appeal of a judgment rendered by a provincial court of law entered before the 1st November 2009.
For the Court of Cassation (C. Cass. com., March 3, 2015, No. 14-10568), nothing is indicated in the Decree No. 2009-1205 of 9 October 2009 concerning an exclusive jurisdiction of the Paris Court of Appeal: only the jurisdiction of the TGI of Paris is recognized for the patents.
Therefore, it is appropriate to apply the general principles of Article R311-3 of the Code of Judicial Organization according to which the Court of Appeal is competent to know the decisions of the Intermediate Courts located in its jurisdiction.
2.1.3. Interest and quality to act
The invalidity of a patent may be requested by any person having an interest direct and staff Act (31 CPC).
It is often said that the interest in acting must be personal and direct, legitimate, born and present.
1) Mundane actions
In the majority of actions in nullity, it is said that theaction is banalthat is, there is no condition as to the standing to act: every person having a direct and personal interest in acting can introduce action (31 CPC).
Here are some examples of interest in acting.
A formal notice / threat from the patentee
The interest to act may be a formal notice or a threat of infringement action by the holder (Civil Court of Seine, August 11, 1864, or in terms of brand Paris District Court, 3rd c. 1st Sect., 19 September 2013).
The person threatened / put in default can then request the nullity of the opposite patent.
Patent hinders a competitor
The patent can really hinder a competitor, because a marketing in France could be hindered by the patent (Court of Appeal of Paris, Pole 5, 1st ch., January 11, 2012).
Historically, interest in acting could be justified byCourt of Appeal of Paris, 4th ch., Sect. B, May 13, 2005) to have a corporation whose object is to
- close to the object of the patentee;
- close to the patented device.
Aujourd’hui, les magistrats semblent en demander plus : il faut démontrer l’existence d’preparatory acts or serious projects implementation of a technique close to the disputed patents (Court of Appeal of Paris, Pole 5, 1st ch., March 6, 2013).
The fact that the plaintiff seeks to release an upcoming exploitation of the patented technique or a similar technique (Cour d’appel de Paris , Pôle 5, 1re ch., 9 avril 2019, RG n° 17/08631).
Nevertheless, a third party manufacturing a product B cooperating with the product A does not have any interest to act for an action in nullity of the product A which it does not manufacture: the theory of the commercial whole can not justify this interest (Paris District Court, June 5, 2014).
The patent hinders the former patentee?
It may happen that the patent has been surrendered, but that the assignor wishes to continue to exploit the invention.
If it finds itself in the situation of a competitor who is embarrassed by the patent, one may wonder whether the conclusions of the preceding section are applicable.
The answer is no !
In fact, the assignor owes to the assignee the guarantee of eviction of his personal fact, a guarantee of public order (1628 Civil Code).
Therefore, he will not be able to claim the nullity of the patent as his principal Court of Appeal of Paris, Pole 5, 1st ch., April 9, 2014).
Licensee no longer wishes to pay royalties
A licensee always has an interest in requesting the nullity of the patent to claim then the nullity of its license agreement for lack of object (C. Cass. com., March 17, 1980, No. 78-14361).
The licensee wishes to see disappear the ownership clauses of the improvements
A license agreement may provide that improvements to a patent, devised by the licensee, must be communicated to the patentee, who reserves the right to file such improvements in his own name.
The licensee, wishing to retain the ownership of these improvements, has an interest in invoking the nullity of the original patent, to cascade these property clauses (C. Cass. com., July 8, 1997, No. 95-17589).
The impact of the patent on the price of a product
It would be quite conceivable for a consumer to be able to apply for the invalidity of a patent if he considers that the patent has a negative impact on the price of the patented product.
Still, will it be necessary to prove:
- the patent has a negative impact on prices (which can be complex) and
- the product is likely to be purchased by the applicant.
Nevertheless, no judge has yet to pronounce on this situation ... This situation has been envisaged only by the doctrine.
Refusal to pay compensation to a non-operating co-owner
Refusing to pay compensation to a non-operating co-owner (of the article L613-29 CPI) seems to be an interest in acting sufficiently.
Decisions to the contrary (Court of Appeal of Paris, 4th ch., Sect. B., 19 December 2003) but the conclusion seems questionable. In the present case, the Court of Appeal had held that the fact of having considered a patent valid for such a long time was a waiver of any action for nullity: if one followed the reasoning of the judges, that would also be valid for the licensee. Moreover, this comes to say that the plaintiff can not change his mind ...
Interest in acting for the patentee himself
If the patentee has bought the patent from a third party (ie he is the assignee), he may want to cancel the sale to recover his money: he then has an interest in acting (C. Cass. com., July 8, 1981, No. 79-15844 or Court of Appeal of Paris, 4th ch. sect. A, 19 October 2005).
The action in nullity could be seen as a "action in verification of the object of the contract of assignment” .
Nevertheless, knowledge prior to the assignment by the assignee of the defect renders the application for invalidity inadmissible (C. Cass. Req., November 9, 1864, Ann. Prop. ind. 1864, p377).
The filing of an application by an unauthorized person
The fact that a patent application European has been filed by an unauthorized person may allow the invalidity of the associated patent (A138 (1) (e) EPC).
However, only the person claiming to be the real person authorized to file the patent application may bring the action for a declaration of invalidity (it is a relative nullity, C. Cass. com, February 14, 2012 # 11-14288).
Focus on patents "drugs"
For the patents of "pharmaceuticals", It is not necessary to obtain a marketing authorization or any other administrative authorization to justify an interest in acting (Paris Tribunal de Grande Instance, 3rd c., 4th Sect. September 30, 2010).
2) Authorized actions
The intellectual property code provides for only one case where the action is assigned, that is to say open to a person by name: the Public minister (L613-26 CPI).
It is not necessary to demonstrate any interest in acting: the public prosecutor therefore acts by mere opportunity.
A union can demand the invalidity of a patent, because the law allows them to act to defend the collective interests of the profession they represent (L2132-3 Labor Code).
A association can act in nullity of a patent, because it can act in the name of collective interests, as soon as they enter into its social object (L421-1-1 Consumer Code or C. Cass 1st civ., 18 September 2008, No. 06-22038).
2.1.4. The abuse
It may happen that the introduction of the action for nullity is perceived as an abuse on the part of the plaintiff (eg it seeks to damage the image of the patentee, to circumvent the authority of the res judicata in a other instance, etc. Paris District Court, 3rd Division, 1st Sect., June 5, 2014).
In this case, the plaintiff is liable to pay substantial damages (Paris District Court, 3rd Division, 1st Sect., June 5, 2014).
Section 2.2. Counterclaim
Counterclaim (64 CPC) in nullity is the action, when one is pursued for infringement, to request the invalidity of the patents serving as a basis for the action for infringement.
2.2.2. Quality and interest in acting
1) Where the main action is an action for infringement
When the main action is an action for infringement, the interest in bringing an action for a counterclaim in nullity is obvious: the defendant seeks to cut short any discussion relating to counterfeiting.
The requirement of "sufficient link"Of the article 70 CPC is then filled.
However, the counterclaim must only be aimed at:
- patents for which an action for infringement has been lodged (Paris District Court, 3rd Division, 2nd Sect., May 31, 2013);
- the claims invoked for infringement;
- unless these claims hinder the defendant's economic activity (C. Cass. com, September 14, 2010, No. 09-13488);
- and possibly the claims on which the claimed claims depend (Court of Appeal of Paris, 4th ch., Sect. A, April 25, 2001).
- unless these claims hinder the defendant's economic activity (C. Cass. com, September 14, 2010, No. 09-13488);
2) When the main action is an action in execution of a license agreement
When the main action is an action in execution of a license agreement, the interest to act of the counterclaim is then justified since the latter action tends to reject the opponent's request by removing the object of the contract. .
The requirement of "sufficient link"Of the article 70 CPC is then filled.
(3) Where the main action is an action relating to the ownership of the patent
Where the main action is an action relating to the ownership of the patent, it will not be possible to bring a counterclaim for revocation (C. Cass. com., November 19, 1963).
Indeed, the questions of validity of the title andlegitimate property"Of the title are very distinct subjects.
2.2.3. Forced intervention of the holder?
In the event that the exclusive licensee files an infringement action, the patentee is not party to the proceedings.
Therefore, the counterclaim in nullity must be directed against the patent owner, in compulsory intervention (331 CPC), so that the patentee is able to defend his rights: in the absence of intervention of the holder (forced or voluntary), the counterclaim will be inadmissible.
2.2.4. Competent courts
1) In civil matters
This question may seem superfluous, as one might think that the competent court is that of the main action.
However, what happens if a dispute over a license agreement occurs between two professionals (jurisdiction of the commercial court) and incidentally, the question of the validity of the patent is raised ...
For the Court of Cassation, since a question relating to a patent is asked, only the Paris Court of First Instance is competent (C. Cass. com., January 21, 2004, No. 02-16958, see L615-17 CPI together D211-6 CPI) and it is not possible to derogate from it.
The Paris Court of Appeal has jurisdiction on appeal (Court of Appeal of Paris, Pole 5, 1st ch., June 20, 2012).
2) In criminal matters
If Article 52 of the law of 3 January 1968 on the patent of invention originally provided that the questions of nullity are decided by the civil judge, this is no longer the case.
Today, the criminal court seized of an action for infringement does not have to refer the dispute before the special court of the article L615-17 CPI if it is also seised of a counterclaim in nullity (this article only dealing with the civil aspects, by analogy in mark C. Cass. Crim., June 19, 2013, No. 12-84533): the criminal court may very well know the action for nullity against the patent.
Section 2.3. Defender in action
The defender is the owner of the patent.
If an assignment has taken place, the action against the assignee must be directed: the action against the assignor must be declared inadmissible (Court of Appeal of Paris, 4th ch., Sect. B, May 13, 2005).
If the transfer has not yet been published, the action may be declared inadmissible (but this inadmissibility will guide you to the new holder). In the context of a counterclaim in nullity, there should be less difficulty since the plaintiff in the action for infringement normally communicates the chain of rights.
Section 2.4. Invalidity of patent and / or patent application
2.4.1. Patent pending
This point is not really a problem since the article L613-25 CPI (for French patents and article L614-12 CPI for European patents) explicitly mentions that a nullity action may be directed to a patent.
2.4.2. Expired or fallen patent
It seems quite possible to act in nullity against a title already expired.
Indeed, because of the retroactivity of the nullity (contrary to the lapse or the expiry), the applicant can have interest to obtain the nullity of the patent:
- to avoid any action for infringement for facts prior to revocation or expiration, or
- to destroy a CCP that is in force (Paris District Court, 3rd Division, 1st Sect., 12 February 2008).
2.4.3. Patent application
If, at first glance, it seems to me that an action in nullity can be directed only towards a patent (in the light of the letter of the article L613-25 CPI for French patents and article L614-12 CPI for European patents), it would seem unfair for a person to bring an action for infringement on the basis of a claim (L615-4 CPI) without the defendant being able to oppose the nullity of the claim.
Judges have thus sometimes allowed the action in nullity directed against a patent application (Paris District Court, c. 03 sect. 02, October 5, 2001 or Paris District Court, 3rd Division, 3rd Sect., 16 November 2005) or have sometimes rejected it (Paris District Court, 3rd Division, 2nd Sect., October 20, 2005).
In short, the situation is uncertain ...
Section 2.5. Limitation of the action in nullity
2.5.1. Before May 23, 2019
1) Principle and delay
Like any legal action, it is necessary to ask the question of the prescription of the action.
Indeed, the article 122 CPC has:
It constitutes a plea of inadmissibility any means tending to declare the opponent inadmissible at his request, without examination on the merits, for lack of right to act, such as lack of quality, lack of interest, prescription, the delay prefix, the thing judged.
Before 19 June 2008, the common law prescription of 30 years applied (2262 of the Civil Code, which in fact amounted to a lack of prescription given the 20-year validity period of the patent).
2) Starting point
Due to the writing of the article 2224 of the Civil Code, the starting point does not seem to be the filing of the patent application, because at this date the application is secret.
Some think that the starting point of the deadline would be the date of publication of the application (Paris District Court, 3rd Division, 1st Sect., 25 April 2013 or Cour d’Appel de Paris, Pôle 5, 1re ch., 8 novembre 2016, RG n°2014/15008).
It would be much more logical to consider that the prescription of the action runs from the date of date of publication of the grant of the patent (Paris District Court, March 13, 2015, 3rd Division, 3rd Section, RG No. 2013/09605) or Court of Appeal of Paris, pole 5 bedroom 2, September 22, 2017): it is at this date that the thirds are warned of the existence of a true title of industrial property "definitive".
Some have even considered that the prescription of the action runs only from the moment when the person who acts in nullity actually had knowledge of the title which is opposed to it (Paris District Court, 6 November 2014, 3rd ch., 1st Sect., RG n ° 2013/14239 or Paris District Court, 3rd ch., 3rd Sect., December 18, 2015, RG n ° 2014/04698).
I let you get by ...
3) Prescription period not running?
It is possible to ask whether in some cases the limitation period does not begin to run.
In my opinion, if the plaintiff at the action in nullity is a minor (or a major under guardianship), the article 2235 of the Civil Code order not to run the limitation period (or suspend it).
This provision immediately brings to mind another, more interesting case: what about a society that is not yet formed? Personally, I will find it logical that the prescription does not run until society is formed (because it can not act before), but we must recognize that nothing is provided by law (or at least that I know).
4) New starting point in case of limitation?
In the event of a limitation, it seems reasonable to think that a new limitation period is starting to run again.
5) Contractual changes to the limitation period
It is a priori possible that a license agreement will change, within a window between 1 and 10 years, the limitation period (2254 of the Civil Code).
This new deadline will only apply between the parties to the license agreement.
6) Special case of the counterclaim
The counterclaim is concerned with the prescription, just as with the main action (see above).
The prescription of the counterclaim is not suspended by the introduction of the main action: the prescription is suspended only on the date of filing of the counterclaim with the registry (C. Cass. 2nd civ. November 26, 1998, No. 96-12262).
7) Prescription invoked at the stage of the appeal
The prescription can be invoked at first instance, but also at the appeal stage (2248 Civil Code).
2.5.2. From May 23, 2019
Depuis la loi PACTE, nous pouvons dire que c’est plus simple (ou pas…).
Indeed, Article 124 of the Law No. 2019-486 of May 22, 2019 on the growth and transformation of enterprises (or law PACTE for intimates), provides that the action nullity is now imprescriptible.
This provision is transcribed in Article L615-8-1 CPI.
2) Transitional provisions
The transitional provision (Article 124, III of the Law No. 2019-486 of May 22, 2019 on the growth and transformation of enterprises) provides that this imprescriptibility applies to all patents in force except for decisions having the force of res judicata.
Tout d’abord, il est dommage d’avoir exclu les titres qui ne sont pas en vigueur puisqu’une infringement action peut être initiée sur la base d’un titre expiré, pour autant que la prescription de cette action n’est pas acquise.
3) Debate on retroactivity
Une fois les dispositions transitoires énoncées, nous pouvons nous demander si cette formulation indique qu’une prescription déjà acquise est rétroactivement annulée ?
Formellement, la disposition transitoire ne dit pas : “pour les brevets en vigueur et même si la prescription est acquise”.
Therefore, does this provision call into question the prescriptions already acquired?
En effet, certains pourraient se fonder sur l’Article 2222 of the Civil Code qui prévoit que “La loi qui allonge la durée d’une prescription ou d’un délai de forclusion est sans effet sur une prescription ou une forclusion acquise”.
Nevertheless, we must not forget that the court of cassation accepte le fait qu’une loi prévoit une rétroactivité de ses dispositions : elle exige alors que cette loi soit explicite concernant cette rétroactivité.
Le plus souvent cette rétroactivité est justifiée par des impératifs d’intérêt général (Court of Cassation, 1re Civ., 18 June 2014, appeal againsto 13-13471) because even an explicit retroactivity can be dismissed by the court of cassation if the justification does not seem sufficient (Court of Cassation, Soc., March 21, 2012, appeal againsto 04-47532).
A mon sens, la rétroactivité doit s’appliquer ici car il n’y a pas d’autres façon d’interpréter la disposition transitoire.
En effet, à supposer que cette disposition ne prévoit pas de rétroactivité, alors que signifie-t-elle ? Que cela s’applique uniquement pour l’avenir (puisque cela ne vise que les titres en vigueur à la date de publication de la loi) ? Dès lors pourquoi avoir fait une disposition transitoire si, en réalité, les principes généraux du droit dans le temps devait prévaloir ?
Pourquoi avoir ajouté “They have no effect on decisions having the force of res judicata” : s’il n’y a pas de rétroactivité, une telle précision n’a aucun sens puisque ces décisions appartiennent au passé. La seule explication de cette phrase est (de mon point de vue) de venir expliquer qu’une décision judiciaire ayant reconnu la prescription de l’action en nullité ne peut être remise en cause du fait de la rétroactivité prévue par les dispositions transitoires.
En conclusion, si les dispositions transitoires ne contiennent pas le mot “rétroactif”, il n’existe pas d’autres interprétations raisonnables et une telle rétroactivité doit être reconnue.
... Moreover, it greatly simplifies our life because the previous situation was really too complex ...
Section 2.6. Purpose of the cancellation
The patent may be canceled in whole or in part (L613-27 CPIparagraph 3).
2.6.2. Total cancellation of the patent
In case of cancellation of all claims of a patent, the patent is annulled and is deemed never to have existed (see below for effects).
If the total cancellation of the claims does not pose a major problem, partial cancellation requires more development.
2.6.3. Partial cancellation of the patent
In reality, the terminology can cover two distinct notions:
- some claims are canceled while others are kept as is;
- certain claims are modified (their scope is limited) by the judge via a referral to the INPI (L613-27 CPIparagraph 3).
1) Cancellation of certain claims
Fate of an independent claim when canceling another independent claim
Each independent claim is ... independent: thus, the nullity of an independent claim has no automatic impact on the other independent claims (Paris District Court, 3rd c. sect. May 02, 2001).
Fate of a claim dependent on a canceled claim
If a claim is considered invalid, this does not automatically mean that the dependent claims must be rescinded.
For example, the cancellation of a claim for lack of inventive step does not automatically result in the nullification of the claims that depend on it (C. Cass. com. May 20, 2014, No. 13-10061 or C. Cass. c. com., January 7, 2014, No. 12-25955).
This may seem obvious with respect to a nullity for lack of novelty orinventive activity (dependent claims constituting limitations of the claims on which they depend), but the Court of Cassation is obliged regularly to recall it (C. Cass. com. July 9, 2013, No. 12-18135).
Similarly, a claim may be insufficiently described while a dependent claim is no longer so (the precise embodiment then claimed is precisely described in the description).
The same goes for thepatent extension beyond the application as filed: this defect does not necessarily "contaminate" the dependent claims (C. Cass. com., July 12, 2005, No. 04-10105).
If a claim is annulled, the claims that depend on it must be considered independent and their validity must be analyzed (Court of Appeal of Paris, 4th ch. sect. B, May 7, 2009) while taking into account the context of the canceled claim (Court of Appeal of Paris, 4th ch., November 8, 2000).
Fate of a dependent claim to a maintained claim
On the other hand, if a claim is considered valid, it does not automatically mean that the dependent claims must be upheld.
Of course, if a claim is considered new and inventive, the dependent claims of it:
- will necessarily new and inventive :
- if their characteristics are true limitations, C. Cass. com., January 14, 1994, No. 92-11296 or C. Cass. com., December 12, 1995, No. 93-21640 94-12488);
- and if their effective date is the same;
- are not not necessarily patentable in the sense that other causes of nullity may exist (cf. L613-25 CPI : lack of description, extension beyond the application as filed, exclusion from patentability, etc.).
2) Limitation of certain claims
In most cases, the limitation of the claims is requested by the owner of the patent himself to avoid a total cancellation of the claim requested by the opponent.
In case of limitation, the judge refers the patentee to the INPI to proceed to it (L613-27 CPI3rd paragraph).
Nevertheless, this limitation is not a right: if the judge prefers a total annulment, he may very well pronounce it (Court of Appeal of Paris, 4th ch., Sect. B, May 20, 2005).
Examples of limitations
Judges have already agreed to limit claims as part of a extension of the purpose of the patent beyond the content of the application as filed (eg if a claim had been extended to "cooking appliance" instead of "deep fryer", The judge can return to the smaller initial scope in order to restore his"true scope” , C. Cass. com., November 15, 1994, No. 93-12917).
Nevertheless, if the patent defect consists in the addition of a limitation to a claim contrary to Article L613-25 CPI (c) (eg limitation not initially disclosed by the request), the judge can not simply delete this feature: indeed, such a deletion would constitute a defect under Article L613-25 CPI (d) because the scope of the claim would be expanded.
It seems possible to obtain a limitation if thescope of patent protection has been increased after delivery (L613-25 CPI d)): in this case the judge may limit to the initial bearing of the granted claim (as long as this limitation is not contrary to Article L613-25 CPI c)).
Moreover, if the claim presents alternatives (eg "aluminum or iron") and only one of the alternatives is new and inventive, it seems possible that the judge pronounces a limitation to the only branch of the valid alternative.
Finally, if a dependent claim has been found to be unpatentable even though the claim on which it depends is, the judge may impose a limitation by removing that dependent claim.
If in order to overcome the flaw affecting a claim, it is necessary to carry out a complete patentability analysis on the basis of the limitation introduced, it is likely that the judge will grant it: the role of the judge is not to redo an examination. by examining the different proposals for modification of the holder!
A pure and simple cancellation of the claim is more likely ...
Section 2.7. Effects
2.7.1. From a cancellation
1) On the patent
The cancellation of a patent has an effect absolute or erga omnes (L613-27 CPI).
Moreover, cancellation has an effect retroactive (general principle of nullity of legal acts) on the patent: the rights then attached to the patent are deemed never to have existed ("principle that what is zero is deemed never to have existed” , C. Cass. 3rd civ., June 22, 2005, no. 03-18.624, “the cancellation of a patent leads to its annihilation on the day of the filing of the patent application” , C. Cass. com., June 12, 2007, No. 05-14548).
In the event of a European patent, it is not excluded that a French decision may annul a patent, whereas a parallel opposition may subsequently maintain the patent in a modified form: the absolute effect of the annulment the EPO's subsequent decision (although, in most cases, French judges stay ingood administration of justice, Paris District Court, c. 03, March 24, 1999).
2) On the supplementary protection certificate
The cancellation of the patent entails the disappearance of the supplementary protection certificate (or CCP) attached to it (L613-28 CPI).
3) The alleged acts of infringement
Since the patent is canceled retroactively (see above), the acts of exploitation of the invention can no longer be considered to be acts of infringement (C. Cass. com., June 12, 2007, No. 05-14548).
4) The abusive nature of the infringement action
The fact that the patent is canceled does not make de facto infringement action (see 32-1 CPC, Court of Appeal of Paris, 4th ch., Sect. A, February 5, 2003 and Court of Appeal of Paris, ch. 04, sect. B, March 29, 2002).
5) On assignments of the patent
If the patent is totally annulled, the possible assignments (the patent of which could have been the object before its cancellation) can be canceled for lack of object and / or cause (C. Cass. com., July 8, 1981, No. 79-15844 or Court of Appeal of Paris, 4th ch. sect. A, 19 October 2005).
If the patent is partially annulled, the judge must seek the "common intention of the parties"By the interpretation of the contract and determine if a contract would have been signed for a patent so limited.
The legal basis of this annulment seems to be, according to the doctrine, the guarantee of hidden defects (1641 Civil Code) owed by the transferor to the transferee (a minority argued that the guarantee due was related to the non-eviction guarantee by third parties, Court of Appeal of Paris, 4th ch. sect. A, 19 October 2005).
In accordance with the common law of nullity, it is advisable to try to put the parties in the situation which was theirs before the conclusion of the contract. If the patent can not be rendered, it is possible (1644 of the Civil Code):
- to return the sale price patent through a redhibitory action (total cancellation of the patent) (1648 of the Civil Code);
- to restore part of the transfer price patent through a estimated action (partial cancellation of the patent);
Profits made by the transferee during the effectiveness period of the patent may be deducted from the transfer price for "compensate for"The destruction of the patent and its non-restitution (1647 Civil Code) but this remains at the discretion of the judge.
Moreover, it is quite possible to provide for a clause in the contract of assignment exempting the transferor from the guarantee (1643 Civil Code) or to provide that the contract would be random contract. This clause must nevertheless be rejected in case of fraud of the seller (C. Cass. Pl., June 30, 1998, No. 96-11866).
6) On existing licenses
If the patent is canceled in its entirety, the license agreement may be canceled for lack of purpose and / or cause (eg for trademarks, C. Cass. com., June 1, 1999, No. 97-12853).
The legal basis of this cancellation seems to be, as for the assignment, the guarantee of latent defects (for the rental of a thing, 1721 Civil Code) due by the licensor to the concessionaire.
In the event of partial cancellation of the patent, the licensee may (in the image of what happens for the assignment) request the annulment of the contract for lack of object and / or cause or a reduction of royalties for the future .
Nevertheless, it appears that licenses already paid must not be repaid even if the patent is deemed never to have existed (C. Cass. com, January 28, 2003, No. 00-12149, the licensee having "benefited"License appearance"): this approach is consistent with the classic position that the termination of a contract operates without retroactivity for successive execution contracts (C. Cass. Civ. 1, October 1, 1996, No. 94-18657).
In addition, the licensor may be liable (on the basis of 1721 Civil Code paragraph 2):
- to return a portion of the royalties received from the date on which the licensee's disturbance began, and
- pay damages for the future loss of profits.
It is quite possible to provide for a clause in the license agreement exempting the grantor of the guarantee (C. Cass. Company, March 11, 1986, No. 84-11231).
7) Transactions between an alleged infringer and the holder
It is possible that an alleged infringer has traded with the patentee to avoid a lawsuit.
In this case, the transaction will not be canceled and the sums paid have no particular reason to be reimbursed (C. Cass. com, January 28, 2003, No. 00-12149).
(8) Decisions against third parties for infringement
It may happen that a person is, initially, sentenced on the basis of a patent and that, in a second time, this patent is canceled.
This raises the question of the conflict of res judicata (ie the conviction of the infringer) and the retroactive annulment of the patent which would deprive the conviction of a legal basis.
After some jurisprudential hesitation (ex. C. Cass. com., March 3, 2009, No. 06-10243), the Court of Cassation, in plenary session, finally indicated that the cancellation of a patent does not base the refund of sums already paid in execution of its conviction (C. Cass. pl. n ° 10-24282, February 17, 2012): the authority of res judicata is a principle superior to the retroactivity of nullity.
Nevertheless, it is reasonable to think that the enforcement judge (L213-6 COJ) will refuse:
- any measure aimed at enforcing a prohibition on the carrying out of "counterfeit" acts (discharging effect - the same would apply if the patent were to be forfeited or expired);
- any measure aimed at enforcing a sentence that has not yet been liquidated (C. Cass. com, June 12, 2007, No. 05-14548);
- any measure aimed at liquidating a penalty payment C. Cass. 2nd civ, January 6, 2005, No. 02-15954).
For'General Counsel Le-Meslethese last points would be justified by the wording of the article itself L613-27 CPI : the annulment has an absolute effect, thus justifying the cessation of the effects of the judgment of conviction for the future.
2.7.2. Of a non-cancellation
The decision rejecting the invalidity of a patent has no absolute effect (C. Cass. com., May 5, 1987, No. 85-16892).
Nevertheless, if there is the triple identity of demand, parties and cause, the authority of the res judicata will prevent the plaintiff to the action to ask for the nullity (1351 CPC).
Nevertheless, it will remain possible:
- for third parties to request the invalidity of a patent for the same causes / reasons, or
- for the same party to request the cancellation of the patent on the basis of a new ground for annulment or cause (C. Cass. com., March 10, 1980, No. 78-11697):
- knowing that by "grounds for cancellation"Or" cause "must be understood insufficiency of description, nullity, inventive step ... (Court of Appeal of Paris, 4th ch. sect. A, May 7, 1996) not important being the proofs of this reason (ie documents of the prior art, characteristics attacked different for insufficiency of description Court of Appeal of Paris 4th Ch., May 27, 1998, etc.);
- if the patent has been modified, it is probable that the same reason may be re-invoked, except (in order not to come into conflict with the authority of res judicata):
- the one that caused the modification of the patent;
- arguing that the patent amendment is an extension of the protection of the post-grant application (L613-25 CPI d)).
- Nevertheless, it should be noted that the Court of Appeal of Paris seems to return to this jurisprudence (Court of Appeal of Paris, Pole 5, 2nd chapter, May 9, 2014) on the ground that the plaintiff must, in the proceedings relating to the first claim, submit all the means which he considers capable of founding that claim (application of the principle ofconcentration of means" of the C. Cass. Plen., July 7, 2006, No. 04-10672).
In the event of a European patent, it is not excluded that a French decision may maintain a patent while a parallel opposition later cancels / amends the patent. In this case, the decision of the European Patent Office is binding on the national courts (A68 CBE).
Chapter 3. The nullity exception
Section 3.1. Principle
In order to defend itself, it seems quite possible to raise a nullity exception patent (ex. C. Cass com., December 17, 1964, No. 60-12295 in which an objection of nullity is raised by a party).
Section 3.2. Legal nature of the exception
The term "exception"Seems to be, in reality, an abuse of language becauseexceptions of nullity"A patent are not procedural exceptions within the meaning of the Code of Civil Procedure (see the invalidity of the article 112 CPC).
If the law of July 5, 1844 (Article 46) provided for the possibility of resorting to an exception allowing the criminal court to know the validity of the patent, this provision has now disappeared:exceptions of nullity"Raised today seem to be, in reality, defenses at the bottom (provided for in Article 71 CPC):
It constitutes a defense on the merits of any means that tends to reject as unjustified, after examination on the merits of the law, the contention of the adversary.
Section 3.3. Exception and counterclaim
If the objection of invalidity requires more than this rejection, the plea of nullity should have been made in the form of a counterclaim (64 CPC): therefore, any additional claim (eg restitution of amounts paid under a license agreement) expressed outside the limitation period must be declared inadmissible (C. Cass. 1st civ. 1 December 1998, No. 96-17761).
Section 3.4. Competent courts
3.4.1. In civil matters
The answer is Yes !
Indeed, the judge of the principal is also competent to know all the defenses "with the exception of those raising a matter within the exclusive jurisdiction of another jurisdiction " (49 CPC): this is the case with the patent and a referral will have to be made.
3.4.2. In criminal matters
As for the counterclaim in nullity, the criminal court can know the patent's nullity exception (384 CPP): the criminal judge is competent to rule on any exception raised.
Section 3.5. The defendant with the exception
Is it possible to invoke an invalidity of the patent where the exclusive licensee has brought the action for infringement in the main proceedings (see above with regard to the counterclaim).
In my opinion, the "admissibility"The exception must not be analyzed in the light of what can be done for an action: the exception must simply be relevant to defend itself.
Therefore, if a counterclaim in nullity can not be directed against a licensee, the exception, it seems to be opposed to any person (because it allows to defend, see C. Cass. 1st civ., February 21, 1995, No. 92-17814 in the matter of sale, the nullity of a contract is opposed to a third party).
Section 3.6. Effects
3.6.1. If the nullity exception is granted
The effect of a judgment welcoming a nullity exception is widely discussed in the literature.
If some think that, contrary to the main and counterclaim actions, the nullity exception does not cause a patent annulment erga omnes (ie opposable to all) (because the exception is only for the rejection of adverse claims and not the nullity of the patent), the Court of Cassation has already pronounced for an absolute effect of this cancellation (C. Cass. , January 20, 1987, Conforglace v. Miroiterie Voironnaise H. Heir: PIBD 1987, No. 410, III, p.
3.6.2. If the nullity exception is rejected
It is quite likely that the effect of the rejection of a plea of nullity is comparable to the rejection of an action for nullity (see above).
Section 3.7. Prescription
In civil procedure, there is a Latin adage "qua temporalia sunt agendum, perpetua sunt ad excipiendum" (ie "what ephemeral by action is perpetual by way of exception") (Ex. C. Cass. 3rd civ., May 10, 2001 No. 99-11762).
Thus, it seems quite possible to raise an objection of nullity of the patent as a defense, regardless of the eventual prescription of the action.
3.7.2. Prescription period expired
Nevertheless, the Court of Cassation specifies that the exception of nullity is admissible only if the limitation period has expired (C. Cass. com. May 26, 2010, No. 09-14431 or C. Cass. 1st civ, May 4, 2012 No. 10-25558 or C. Cass. com. Dec 3 2013, No. 12-23976): if it has not expired, priority must be given to the counterclaim in nullity.
3.7.3. Commencement of the contract
In the context of a contractual relationship, the execution of the contract impedes the perpetuity of the exception (C. Cass. 1st civ, May 4, 2012 No. 10-25558), was the nullity invoked relative or absolute (C. Cass. Civ. 1st, 24 Apr. 2013, No. 11-27082).
2) Case of a license agreement
If, in general, this principle does not apply (because there is often no contract between the owner and the infringer), we can wonder about the applicability of this principle in the hypothesis where a licensee is sued for infringement to exceed the limits set by its license agreement.
If the licensee has already paid licenses (ie execution of part of the license contract), will he be entitled to invoke a nullity exception against the patent, subject of the license?
In my opinion, the licensee would be perfectly entitled to raise this exception, since the nullity exception is not directly directed to the license agreement itself, but to the patent that is the subject of the contract.
Chapter 4. Limitations to the challenge of the patent
Section 4.1. Principle
The owner of a patent (respectively the assignee) may wish to insert in the license (or assignment) contracts a clause prohibiting the direct or indirect challenge to the validity of the patents granted (respectively assigned) (clause deemed a priori valid by principle C. Cass. com, December 7, 1964).
Section 4.2. Consequence in case of non-compliance with the clause
The Court of Cassation indicated that the violation of this obligation should be sanctioned by a dismissal (C. Cass. mix., February 14, 2003, Nos. 00-19423 and 00-19424).
Section 4.3. Limitation and framework of the contract
A priori, such a clause may limit the bringing of an action for nullity (as principal or counterclaim) as part of the performance of the contract.
Nevertheless, if the licensee is prosecuted for infringement (because he has overstepped the contractual framework of its license), it seems possible to defend itself by raising the nullity of the patent by way of counterclaim or exception (C. Cass. com., December 17, 1964).
Section 4.4. Limitation and Community law
A clause prohibiting the challenge of a patent in a license agreement was historically prohibited by the Regulation 2349/84 of 23 July 1984 (ban on free competition, see also Commission Decision 2 December 1975, 76/29 / EEC).
4.4.2. Principle: a likely prohibition of limitation
If the Regulation 772/2004 of 7 April 2004 (now replacing Regulation 240/96 and Regulation 2349/84) does not explicitly list prohibited clauses, it is reasonable to think that such a clause would still be prohibited (at least, it should be analyzed, on a case-by-case basis, under Article 101 (1) 101 (3) of the Treaty on the Functioning of the European Union).
A clause terminating the agreement in the event of a dispute remains possible (Article 5.1.c of the Regulation 772/2004 of 7 April 2004).
4.4.3. Exception to this prohibition
The ECJ had stated some time ago (judgment of 27 September 1988 of the ECJ, case 65/86) such a clause should be prohibited except:
- whether such a clause was intended to put an end to a dispute pending before a national court;
- if the license is granted free of charge;
- if the license relates to a technically outdated process.
Section 4.5. Limitation and former patentee
The assignor owes to the assignee a guarantee of eviction of his personal fact, a guarantee of public order (1628 Civil Code) that he can not dismiss.
Therefore, he can not claim the nullity of the patent as principal.