Kirsteen drafts, files and prosecutes patent applications worldwide and has experience of opposition and appeal work at the European Patent Office. She has also handled applications for Supplementary Protection Certificates and Patent Term Extensions in a number of jurisdictions. She additionally advises clients on due diligence and freedom to operate matters and provides infringement and invalidity opinions. Furthermore, Kirsteen is a regular visitor to Norway, where she acts for a number of different clients based in, or around, Oslo and Trondheim including those in the UT network in Trondheim.
Kirsteen has experience of a range of different chemical subject matter including pharmaceuticals, diagnostic assays, medical devices, polymers and petrochemicals. Her current practice focuses on pharmaceuticals and medical devices, and she is also Managing Partner of our Cambridge office and a member of the Marks & Clerk board.
Kirsteen entered the patent profession in London in 2001 and qualified as a European Patent Attorney and Chartered Patent Attorney in 2004. She joined the Cambridge office of Marks & Clerk in 2008. During training she was awarded the Bill Caro prize for overall first place in the Certificate in Intellectual Property Law examinations. She has a first class honours degree in Chemistry from the University of Aberdeen and a PhD from the University of Cambridge for her research on linkers for use in solid-phase combinatorial synthesis.