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 patent validity
AIPPI UK Event Report: Roundup of 2022's Patent Cases AIPPI UK Event Report: Roundup of 2022's Patent Cases Reviewed by Annsley Merelle Ward on Wednesday, April 05, 2023 Rating: 5
Abrasive outcome on over-broad ranges for 3M in Saint-Gobain dispute re-emphasizes importance of narrow dependent claims Abrasive outcome on over-broad ranges for 3M in Saint-Gobain dispute re-emphasizes importance of narrow dependent claims Reviewed by Annsley Merelle Ward on Monday, October 24, 2022 Rating: 5
Africa IP highlights 2020 #3: The patent and designs fields Africa IP highlights 2020 #3: The patent and designs fields Reviewed by Chijioke Okorie on Friday, December 18, 2020 Rating: 5
South Africa’s Constitutional Court rules on whether patent validity can be used as both a sword (revocation action) and a shield (infringement action) in patent proceedings South Africa’s Constitutional Court rules on whether patent validity can be used as both a sword (revocation action) and a shield (infringement action) in patent proceedings Reviewed by Chijioke Okorie on Tuesday, January 14, 2020 Rating: 5
Canadian Supreme Court holds promise doctrine "unsound" in AstraZeneca v Apotex Nexium dispute Canadian Supreme Court holds promise doctrine "unsound" in AstraZeneca v Apotex Nexium dispute Reviewed by Annsley Merelle Ward on Saturday, July 01, 2017 Rating: 5
ChIPs Global Summit Report 3: Congratulations - your patent has been allowed, when is it finally final? ChIPs Global Summit Report 3: Congratulations - your patent has been allowed, when is it finally final? Reviewed by Annsley Merelle Ward on Sunday, September 25, 2016 Rating: 5
Does Mr Justice Birss' decision in Positec finally signal the end of disclosure in obviousness cases in the UK Patents Court? Does Mr Justice Birss' decision in Positec finally signal the end of disclosure in obviousness cases in the UK Patents Court? Reviewed by Annsley Merelle Ward on Tuesday, May 17, 2016 Rating: 5
Mr Justice Arnold finds American Science's mobile X-ray scanner patent valid Mr Justice Arnold finds American Science's mobile X-ray scanner patent valid Reviewed by Annsley Merelle Ward on Wednesday, April 13, 2016 Rating: 5
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