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.
[Guest post] Standard Essential Patent Litigation in Brazil: A Short Story of Sharp Practices [Guest post] Standard Essential Patent Litigation in Brazil: A Short Story of Sharp Practices Reviewed by Dr Claire Gregg on Friday, September 11, 2026 Rating: 5
G1/25: What are the consequences? G1/25: What are the consequences? Reviewed by Dr Rose Hughes on Tuesday, September 08, 2026 Rating: 5
Schrödinger’s saddle – visible and invisible at the same time? Schrödinger’s saddle – visible and invisible at the same time? Reviewed by Marcel Pemsel on Monday, September 07, 2026 Rating: 5
BREAKING: When real doubt hits - G1/25 changes the description adaptation requirement for the worse BREAKING: When real doubt hits - G1/25 changes the description adaptation requirement for the worse Reviewed by Dr Rose Hughes on Thursday, September 03, 2026 Rating: 5
Never Too Late: If you missed the IPKat last week! Never Too Late: If you missed the IPKat last week! Reviewed by Wissam Bentazar on Wednesday, September 02, 2026 Rating: 5
Hayden v Koons: US Court of Appeals says it was 30 years too late Hayden v Koons: US Court of Appeals says it was 30 years too late Reviewed by Söğüt Atilla-Aydın on Tuesday, September 01, 2026 Rating: 5
[GuestPost] What has long arms and lives in Switzerland? The cross-border injunction club gains a new member [GuestPost] What has long arms and lives in Switzerland? The cross-border injunction club gains a new member Reviewed by Dr Rose Hughes on Tuesday, September 01, 2026 Rating: 5
Is consignment a novelty destroying prior use in Australia? Is consignment a novelty destroying prior use in Australia? Reviewed by Dr Claire Gregg on Tuesday, September 01, 2026 Rating: 5
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