Powell Gilbert LLP

Simon Ayrton

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Practice Areas

Intellectual property litigation. Work covers advising on full range of intellectual property including patents, trademarks, copyright, designs and confidential information. Cases include Research Corporation's Patent (licence of right under the SPC for Carboplatin), IBM v Phoenix (trademark infringement and passing off), Rambus v Micron and Hyundai (patent infringement), Gillette v Corsair (passing off), Monsanto and Searle v Merck (patent infringement), Allergan v Pharmacia (patent infringement), Duracell v Round Imports (trade mark infringement), Sony Computer Entertainment v Ball (circumvention of copy protection measures), Aerotel v Telco (business method patents), Dr Reddy's v Eli Lilly (patent revocation), Philips and Others v Alba (patent exhaustion and competition), Apple v Nokia (patent infringement), HTC v Apple (patent revocation) and Unwired Planet v Huawei (patent infringement and FRAND).


Articled with Bristows 1991-93. Partner at Bristows 2000-07. Founding Partner at Powell Gilbert LLP 2007.

Professional Memberships



Writes articles for specialist periodicals. Regular speaker at intellectual property conferences and seminars.


Born 1966. Educated Watford Boys' Grammar School and Gonville and Caius College, Cambridge University (Natural Sciences).