- In this opposition appeal case, the question is whether the priority is valid. The priority application D16 was filed by Chiesi, the application that became the patent in suit was filed by Vectura. The question is therefore whether Vectura " owned the priority right resulting from D16"
- There is an assignment D22 from Chiesi to Vecture of " rights to the ownership of application 3 (D16)" . However, there is a further assignment D23 "in which Vectura re-assigned to Chiesi the right to claim priority from application 3 (D16) in worldwide patent applications insofar and only insofar as said worldwide patent applications shall claim the Programme 2 formulations." The "Programme 2 formulations" are embodiments of the invention.
- The Board first notes that in G1/15 the Enlarged Board has ruled that entitlement to partial priority may not be refused for a generic "OR" claim.
- The Board: "Once it is acknowledged that partial priority rights exist, they must also be transferable separately. This, however, has consequences for the remaining priority right, because the assignor is left with a limited right."
- The patentee had argued that according to T 15/01 there is no exhaustion of priority rights. The Board: "However, an applicant can only claim a right which he owns and this was not the case for the priority right concerning the Programme 2 formulations. An applicant cannot transfer a partial priority right and at the same time keep it for claiming it in a broader context."
- The Board finds that "Consequently, the subject-matter of claim 1 as granted encompasses embodiments for which the patent proprietor did not have the priority right and for which therefore the priority is not valid."
- The priority is therefore partially invalid.
- Claim 1 is therefore not novel over D14, a prior right under Article 54(3). D14 validly claims priority of D16 and which discloses embodiments for which the priority of the claim 1 at issue is not valid. Consequently, the main request does not meet the requirements of Article 54(3) EPC.
- As a comment, I think that the Board assumes too easily that "Once it is acknowledged that partial priority rights exist, they must also be transferable separately." Not everything that exists, can be transferred under law. For example, under Dutch law, claims of a patent can not be transferred: a person can e.g. be owner of a 50% share of a patent or a patent application, but claim 1 and claim 2 can not have different owners (same for the EPO of course). The same applies to e.g. pedals of a bike under Dutch law. The pedals and the bike can have a different owner once the pedals are removed from the bike, but not as long as the pedals are part of the bike, the owner of the bike is owner of the entire bike. I can perfectly agree to with someone to sell to him the pedals, or to sell to him claim 2 of a patent, but such agreement is without effect as a matter of Dutch property law. Hence, the fact that "partial priority" exists as a matter of patent law, does not mean that it is separately transferable. The latter is a priori a matter of national law. If Dutch law is the applicable national law, it must be concluded that the assignment D22 is without effect as to the ownership of the priority right (under Dutch law, there is a strict distinction between agreements and ownership, as in German law).
- Auxiliary Request 4 adds a disclaimer to exclude the "Programme 2 formulations", the disclaimer feature was in claim 17 of the application as filed."The amendment brought to claim 1 of this request overcomes all issues as regards the validity of the priority and the relevance of D14 under Article 54(3) EPC." However, AR4 is not admitted because it was filed with the Statement of grounds. "The patent proprietor could have filed a request disclaiming the formulations for which the priority was not valid. He even had an express basis for this in claim 17 as filed and in claim 16 as granted to address this very issue." The request should have been filed before the OD.
EPO T0969/14 - link
Reasons for the Decision
1. Validity of the priority
1.1 Pursuant to Article 87(1) EPC, a right of priority originates in the applicant of a first application. Therefore, in principle, the applicant has to be the same for the first application and for the subsequent application for which the right of priority is invoked. However, pursuant to Article 87(1) EPC, the right of priority may also be invoked by the "successor in title" of the person who has filed the first application. By reference to the "successor in title", it is recognised that the right of priority, being a legal right, may be transferred from the original applicant to a third person. It is generally accepted that the right of priority is transferable independently of the corresponding first application. The transfer must have occurred before the filing date of the subsequent application. This is well established jurisprudence of the Boards of Appeal (cf T 205/14 of 18 June 2015, with further references).