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 G 1/23
Non-reproducible products can be the closest prior art (T 1719/21) Non-reproducible products can be the closest prior art (T 1719/21) Reviewed by Dr Rose Hughes on Wednesday, December 31, 2025 Rating: 5
The importance of confidentiality (and why G 1/23 did not establish a US style on-sale bar to patentability in Europe) The importance of confidentiality (and why G 1/23 did not establish a US style on-sale bar to patentability in Europe) Reviewed by Dr Rose Hughes on Monday, December 15, 2025 Rating: 5
The morality (and patentability) of inventions derived by immoral means (T 2510/18) The morality (and patentability) of inventions derived by immoral means (T 2510/18) Reviewed by Dr Rose Hughes on Thursday, October 31, 2024 Rating: 5
New EBA referral: When is prior use of a product excluded from the prior art for lack of enablement? New EBA referral: When is prior use of a product excluded from the prior art for lack of enablement? Reviewed by Dr Rose Hughes on Friday, June 30, 2023 Rating: 5
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