Nathaniel Lipkus

Partner at Osler, Hoskin & Harcourt LLP

Nathaniel Lipkus is an IP litigator and strategist in Osler, Hoskin & Harcourt LLP’s national IP department. His practice focuses on contentious legal issues confronting innovation-intensive industries, with an emphasis on patent and regulatory issues facing pharmaceutical and biotechnology companies. He also provides IP advice to start-ups and other emerging companies.

Mr Lipkus has represented numerous companies in the life sciences, technology, energy and gaming industries in patent proceedings across Canada and pro hac vice in the United States. He has also litigated trademark, copyright, trade secret and other commercial matters. Mr Lipkus was lead counsel for the Children’s Hospital of Eastern Ontario in Canada’s only patent litigation involving claims to human genes, representing the hospital in good faith. He has also advocated on behalf of life sciences clients before numerous regulatory agencies in Canada and the United States on IP, regulatory approval, pricing and reimbursement, and antitrust matters.

Mr Lipkus is a registered patent and trademark agent. In addition to his role as advocate, he provides strategic advice on IP portfolio and risk management. He regularly assists companies in a wide variety of innovation-intensive industries by coordinating IP, regulatory and commercial strategies.

Mr Lipkus has been recognised by leading industry publications, including Chambers Canada (intellectual property litigation), the Legal Media Group as a Life Sciences Star, Acritas as a Star Lawyer, The Best Lawyers in Canada (intellectual property), the Canadian Legal Lexpert Directory (intellectual property) and the IAM Patent 1000.

Professional associations

  • Advocates’ Society
  • CBA
  • IPIC

Sample client list

  • CGPA
  • Mylan Pharmaceuticals
  • Teva Canada
  • VMware

Firm details

Osler, Hoskin & Harcourt LLP
100 King Street West
1 First Canadian Place
Suite 6200
Toronto ON M5X 1B8

Contact details

See firm profile