Wednesday, December 20, 2017 G 1/16 - The final word (?) about disclaimers

The referral relates to the allowability of undisclosed disclaimers. The referring Board asked about the applicability of the gold standard disclosure test as defined in decision G 2/10 to undisclosed disclaimers (no), and the applicability of criteria as defined in decisions G 1/03 and G 2/03 (yes). The decision G 1/16 (Disclaimers III) noted that in drafting of undisclosed disclaimers as amendments, no technical contribution to the claimed subject-matter of the application as filed may be provided. 

Tuesday, October 25, 2016 T 437/14 - New Questions on Disclaimers referred to Enlarged Board

Is this still the same apple?

The disclaimer case G 1/03 seems to allow exceptions to Article 123(2) that 'Gold-standard' case G 2/10 does not allow. This board does not like it one bit:

"If one takes a bite out of an apple, what remains is recognisably no longer the same apple as the original one. Even though it is still an apple, the apple with the bite taken out of it cannot be regarded as explicitly or implicitly, but directly and unambiguously, "disclosed" in the original apple." (Reasons 8.1)

Claim 1 in this case includes two disclaimers to restore novelty against an accidental anticipation. This would be allowed under G 1/03. Is it also allowed under the more recent G 2/10? We will soon have a new enlarged board decision on disclaimers, joining the ranks of G 1/03 and G 2/10, because the following questions have been referred:

1. Is the standard referred to in G 2/10 for the allowability of disclosed disclaimers under Article 123(2) EPC, i.e. whether the skilled person would, using common general knowledge, regard the subject-matter remaining in the claim after the introduction of the disclaimer as explicitly or implicitly, but directly and unambiguously, disclosed in the application as filed, also to be applied to claims containing undisclosed disclaimers?

2. If the answer to the first question is yes, is G 1/03 set aside as regards the exceptions relating to undisclosed disclaimers defined in its answer 2.1?

3. If the answer to the second question is no, i.e. if the exceptions relating to undisclosed disclaimers defined in answer 2.1 of G 1/03 apply in addition to the standard referred to in G 2/10, may this standard be modified in view of these exceptions?

Friday, April 29, 2016 T 2523/11: attempt to voluntarily reduce scope of protection without support in application as filed

In opposition the patent was revoked because there was no support for a range of "0.2mm to 0.8mm diameter for warp and weft yarns". The patent application as filed has support for: "warp yarns having a diameter in the range of 0.20 mm to 0.80 mm and weft yarns having a diameter in the range of 0.20 mm to 1.0 mm". Thus, the proprietor reduced the scope of protection by giving up the diameter range from 0.8mm to 1.0mm for the weft yarns. 

During the Opposition procedure the proprietor used G 1/93 to argue that the scope of protection of features without a technical contribution may be reduced without violating Art. 123(2). The Opponent and the Opposition Division did not share that opinion. 


An appeal was filed with several requests in which the proprietor tried several strategies to overcome the A.123(2) and (3) problem. In the main request a correction of an obvious error was requested (change 1.0 to 0.8mm). In the auxiliary requests several variations of (undisclosed) ranges / values were requested. The outcome of the appeal procedure is that the scope of protection is now reduced to "infinitely small".

Monday, March 23, 2015 T 1363/12 - Gold does not erode

The applicant appealed the refusal of the Examining Division due to an alleged non-compliance with Art.123(2) EPC. He filed an appeal, and argued compliance with Art.123(2) EPC in view of a presumed interpretation of how to apply G 2/10 in a newly added paragraph in the November 2014 edition of Guidelines. Did the gold standard for the fundamental test under Article 123(2) EPC change?