Derk Vos specializes in the fields of chemistry and pharmaceuticals, with particular emphasis on medicinal products (e.g. small molecules), plant protection agents, lubricants and chemical processes.

Derk provides counselling on patent portfolio strategies and portfolio management across a wide range of IP-related matters including validity, infringement and nullity proceedings, supplementary protection certificates, due diligence and freedom-to-operate. He drafts patent applications and oversees patent prosecution worldwide. He has successfully conducted numerous opposition and appeal proceedings before the EPO, including petition for review proceedings before the Enlarged Board of Appeal. He has been involved in and coordinated national and international nullity and infringement proceedings, particularly in the areas of pharmaceuticals and diagnostics.

since 2009 Partner, shareholder and managing director at Maiwald since 2007 Patent attorney at Maiwald 2004 - 2007 Patent attorney trainee at Maiwald 2000 - 2004 Management consultant at an international strategy consulting company with projects in Germany, the USA and Sweden

epi GDCh

Partner German Patent Attorney European Patent Attorney Representative before the UPC Chemist

2023 Admitted to practice before the UPC 2007 Admitted to practice as European patent attorney 2007 Admitted to practice as German patent attorney 2004 - 2006 Studied law for patent attorneys at the University of Hagen 1997 - 2000 Doctoral degree in the field of organometallic chemistry from Bielefeld University 1991 - 1997 Studied chemistry at Bielefeld University and the University of Utah