T 2130/11 - Unclear disclaimers and disclaiming more than necessary

Key point

• A disclaimer may remove more than necessary for restoring novelty is allowable if this is necessary to keep the disclaimer concise and clear. 

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EPO Headnote


The difficulty for the applicant or patent proprietor in formulating an allowable disclaimer cannot justify an exception in the application of Article 84 EPC which is not foreseen in the Convention. Not even a condition on the allowability of a disclaimer made explicit in a decision of the Enlarged Board as the condition that a "disclaimer should not remove more than is necessary to restore novelty" (G 1/03, point 3 in the reasons, second paragraph, last sentence) may have as a consequence the watering down of one of the requirements of the EPC. The requirements of Article 84 EPC must therefore apply for a disclaimer as for any other feature of a patent claim (see point 2.9).


On the other side, the condition that the disclaimer should not remove more than is necessary to restore novelty should be applied while taking into consideration its purpose, namely that the "necessity for a disclaimer is not an opportunity for the applicant to reshape his claims arbitrarily" (G 1/03, point 3 in the reasons, second paragraph, last but one sentence). In this respect situations can be foreseen, in which, while fulfilment of the condition taken in a strictly literal way would not be possible, a definition of the disclaimed subject-matter which satisfies the requirements of Article 84 EPC and fulfils the purpose of the condition (i.e. to avoid an arbitrary reshaping of the claims) may be achievable. In other words, a disclaimer removing more than strictly necessary to restore novelty would not be in contradiction with the spirit of G 1/03, if it were required to satisfy Article 84 EPC and it did not lead to an arbitrary reshaping of the claims (see point 2.10).

T 2130/11 - 02.03.2015

Dated 02.12.2014 - Board 3.3.07 - publication B - for the decision, click here

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