Walter is a lawyer and registered Canadian Patent Agent in the Toronto office of Marks & Clerk Canada. His practice focuses on patent prosecution, opinions, and counseling, and covers a broad range of biological, chemical and pharmaceutical technologies. He provides strategic guidance to solo inventors, start-ups, universities, and multinational corporations seeking patent protection in Canada and abroad, and he is passionate about crafting patent strategies that respond to commercial objectives. 

Before joining Marks & Clerk, Walter practiced patent prosecution at a leading Canadian intellectual property law firm and managed the intellectual property portfolio of a Canadian public research university. He obtained a doctorate from Stanford University, where his research concerned the development of catalytic asymmetric methods for organic synthesis and the total synthesis of biologically active natural products. 

Walter is fluent in both English and Cantonese.