Clark is a Registered Patent Agent (2005) with the Canadian Intellectual Property Office. He practises in the Intellectual Property Department in the Ottawa office and is a member of the Technology Business Group. His practice focuses on drafting and prosecuting patent applications specializing in biotechnology, biochemical and chemical sciences. He works closely with Osler’s corporate department to provide assistance with complex intellectual property due diligence matters. He specializes in Canadian and foreign patent, industrial design and plant breeders’ rights prosecution, patentability and freedom to operate opinions and advising clients with respect to the strategic development and management of their intellectual property portfolios. Clark has extensive interdisciplinary research experience encompassing biochemistry, enzyme kinetics, pharmacology, and molecular biology.