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 validity
[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
Keeping up with Belgian patent litigation: Year case law review 2023 Keeping up with Belgian patent litigation: Year case law review 2023 Reviewed by Annsley Merelle Ward on Tuesday, September 03, 2024 Rating: 5
[UPCKat] Sufficient certainty of patent validity/infringement in PI proceedings [UPCKat] Sufficient certainty of patent validity/infringement in PI proceedings Reviewed by Annsley Merelle Ward on Tuesday, May 28, 2024 Rating: 5
Another “brick” in Lego’s modular systems design protection Another “brick” in Lego’s modular systems design protection Reviewed by Anna Maria Stein on Thursday, January 25, 2024 Rating: 5
[Conference report] Whither will bifurcation go? A critical discussion on Germany's bifurcated patent proceedings [Conference report] Whither will bifurcation go? A critical discussion on Germany's bifurcated patent proceedings Reviewed by Annsley Merelle Ward on Saturday, October 09, 2021 Rating: 5
Validity of a Supplementary Protection Certificate. Testing the boundaries in a new ruling by the Swiss Tribunal Federal Validity of a Supplementary Protection Certificate. Testing the boundaries in a new ruling by the Swiss Tribunal Federal Reviewed by Frantzeska Papadopoulou on Wednesday, February 13, 2019 Rating: 5
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