Passionate about IP! Since June 2003 the IPKat has covered copyright, patent, trade mark, designs, info-tech and confidentiality issues from a mainly UK and European perspective. Read, post comments and participate!

The team is Eleonora Rosati, Annsley Merelle Ward and Merpel. E-mail the Kats here!

The team is joined by GuestKats Söğüt Atilla, Oliver Fairhurst, Claire Gregg, Georgia Jenkins and Marcel Pemsel.

SpecialKats: Verónica Rodríguez Arguijo (TechieKat), Rose Hughes (PatKat) and Jocelyn Bosse (Book Review Editor).

InternKats: Wissam Bentazar, Simone Lorenzi and Kliment Markov.
Results for claim interpretation
Lack of clarity by the backdoor: An ambiguity "may simply result in a broader interpretation" (T 0977/25) Lack of clarity by the backdoor: An ambiguity "may simply result in a broader interpretation" (T 0977/25) Reviewed by Dr Rose Hughes on Wednesday, September 30, 2026 Rating: 5
[Book Review] Patent Claims: Interpretation, validity and infringement [Book Review] Patent Claims: Interpretation, validity and infringement Reviewed by Dr Claire Gregg on Tuesday, September 15, 2026 Rating: 5
New referral on claim interpretation and relevance of G1/24 to added matter confirmed (G1/26) New referral on claim interpretation and relevance of G1/24 to added matter confirmed (G1/26) Reviewed by Dr Rose Hughes on Thursday, June 04, 2026 Rating: 5
BREAKING: Imminent new referral to the EBA on the relevance of G1/24 to added matter BREAKING: Imminent new referral to the EBA on the relevance of G1/24 to added matter Reviewed by Dr Rose Hughes on Tuesday, March 03, 2026 Rating: 5
Description amendments can extend protection (T 439/22) Description amendments can extend protection (T 439/22) Reviewed by Dr Rose Hughes on Saturday, February 28, 2026 Rating: 5
First use of G 1/24 to broaden clear claim language (T 1849/23) First use of G 1/24 to broaden clear claim language (T 1849/23) Reviewed by Dr Rose Hughes on Tuesday, November 11, 2025 Rating: 5
No claim interpretation summersaults for the EPO (T 2027/23) No claim interpretation summersaults for the EPO (T 2027/23) Reviewed by Dr Rose Hughes on Monday, September 01, 2025 Rating: 5
Divergence between the UPC and EPO on claim interpretation and description definitions (Agfa v Gucci, UPC_CFI_278/2023) Divergence between the UPC and EPO on claim interpretation and description definitions (Agfa v Gucci, UPC_CFI_278/2023) Reviewed by Dr Rose Hughes on Monday, August 11, 2025 Rating: 5
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