David W. Aitken
Founding Partner

Aitken Klee LLP

100 Queen St, Suite 300
Ottawa, ON K1P 1J9
Phone: (613) 903-5099
Fax: (613) 695-5854
E-mail: daitken@aitkenklee.com

Practises exclusively in IP law with 30 years of experience in complex patent litigation in the fields of telecommunications, oil and gas and pharmaceuticals. Also specializes in licensing and exploitation of patent rights, and providing patent infringement and validity opinions. Lead counsel in the landmark 2012 decision of the Supreme Court of Canada holding the patent for Viagra invalid, and for which he was awarded the “Milestone Case 2013” by Managing Intellectual Property. Named Benchmark Canada 2016 "IP Litigator of the Year". Inducted by LMG to the Life Sciences Hall of Fame (2014) and “Patent Litigation Attorney of the Year 2013" and Life Sciences “Star”. Named The Best Lawyers in Canada 2014 “Ottawa IP Law Lawyer of the Year”. Included in the Chambers Canada 2015: Leading Lawyers for Business (IP Litigation, Band 1), 2015 Lexpert®/ALM 500 Directory and Lexpert® Guide to the Leading US/Canada Cross-Border Litigation Lawyers in Canada; Who’s Who Legal: Canada 2015 (patents and life sciences); IAM Patent 1000 2015 – The World’s Leading Patent Professionals; IAM Patent Litigation 250 2013; MIP 2015 IP Stars Handbook: Patents. LLB 1982 McGill University, BEng (Chem) 1975 Royal Military College of Canada, Reg'd Patent Agent and Trademark Agent, Ontario Bar 1984.

Year Called to the Bar:1984 (ON)
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