Non-reproducible products can be the closest prior art (T 1719/21) By Dr Rose Hughes on Wednesday, December 31, 2025 G 1/23 g1/23 patents PatKat prior use Rose Hughes +
The importance of confidentiality (and why G 1/23 did not establish a US style on-sale bar to patentability in Europe) By Dr Rose Hughes on Monday, December 15, 2025 G 1/23 PatKat prior use Rose Hughes +
The morality (and patentability) of inventions derived by immoral means (T 2510/18) By Dr Rose Hughes on Thursday, October 31, 2024 Article 53(a) EPC epo EPO Boards of Appeal G 1/23 patents PatKat prior use Rose Hughes +
New EBA referral: When is prior use of a product excluded from the prior art for lack of enablement? By Dr Rose Hughes on Friday, June 30, 2023 EBA referral epo EPO Boards of Appeal G 1/23 patents PatKat prior use Rose Hughes +