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 written description
Be careful what you wish for: Method of treatment claim for an antibody genus found to satisfy both written description and enablement requirement (Teva v Eli Lilly) Be careful what you wish for: Method of treatment claim for an antibody genus found to satisfy both written description and enablement requirement (Teva v Eli Lilly) Reviewed by Dr Rose Hughes on Monday, May 18, 2026 Rating: 5
Strict US written description and enablement requirement applied to ADCs and platform inventions (Seagen v Daiichi Sankyo) Strict US written description and enablement requirement applied to ADCs and platform inventions (Seagen v Daiichi Sankyo) Reviewed by Dr Rose Hughes on Monday, December 08, 2025 Rating: 5
Will functional antibody inventions find new life in the US with mean-plus-function claims? (Ex parte Chamberlain, Appeal No. 2022-001944) Will functional antibody inventions find new life in the US with mean-plus-function claims? (Ex parte Chamberlain, Appeal No. 2022-001944) Reviewed by Dr Rose Hughes on Monday, June 10, 2024 Rating: 5
Sufficiency of broad functional genus and first medical use claims in Europe (T 0424/21) Sufficiency of broad functional genus and first medical use claims in Europe (T 0424/21) Reviewed by Dr Rose Hughes on Wednesday, October 26, 2022 Rating: 5
Strict US written description requirement applied to CAR-T-cell therapy (Juno v Kite) Strict US written description requirement applied to CAR-T-cell therapy (Juno v Kite) Reviewed by Dr Rose Hughes on Sunday, January 09, 2022 Rating: 5
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