Mark W. Sajewycz

Mark W. Sajewycz is a Toronto lawyer or paralegal in the law firm Ridout & Maybee LLP. The most recent record indicates the address of 5th Floor 250 University Ave. Toronto, Ontario M5H 3E5 (See on the map) and the contact phone is 416-865-3515, the fax number is 416-362-0823, the updated date is July 26th, 2023.

Mark W. Sajewycz practice area is Intellectual Property, the contact email is, you can view full profile detail on the website You can also find it in the Lawyer List M.

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Areas of Practice
Intellectual Property; Patents; Biotechnology & Pharmaceutical Law

B.A.Sc (Chemical Engineering), University of Toronto (1989); LL.B., Western University (1995); Barrister & Solicitor, Province of Ontario (1997); Registered Patent Agent, Canada (2002); Registered Patent Agent, U.S. (2003); Registered Trademark Agent, Canada (2010).

Canadian Hydrogen and Fuel Cell Association (Past Director); American Intellectual Property Law Association AIPLA; International Association for the Protection of Intellectual Property AIPPI; Intellectual Property Institute of Canada IPIC; Professional Engineers Ontario PEO; Chemical Institute of Canada CIC; Intellectual Property Owners Association IPO.

Mark Sajewycz is a partner at Ridout & Maybee LLP in the firm’s Toronto office. His practice consists of the acquisition, protection, commercialization and exploitation of patents, trademarks and industrial designs. Before practising law, he worked as an engineer in the nuclear industry.

Mark provides strategic advice on all aspects of patent law and protecting innovation. He is experienced in managing worldwide patent portfolios and is often retained to provide freedom-to-operate and validity opinions on complex technologies. He also assists in drafting and negotiating patent licensing, joint research and other technology-related agreements. Mark is also experienced in assisting Canadian companies in the patenting of various chemical and mechanical technologies. This includes organic and inorganic chemical compounds and compositions and various chemical processes and reaction systems, with a specific emphasis on energy-related (oil and gas, nuclear, biofuels) and clean technologies (water purification, fuel cells, batteries, solar).

Mark also teaches the advanced patent law course at Western University Law School.

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