Omar Nassif

Omarm Nassif
Toronto, Ontario, Canada

It should come as no surprise to you to learn that Omar is an avid collector and lover of wine.

The expert in patent matters that he is, it’s really no wonder: having a great wine cellar is not unlike managing an IP portfolio. Both require a great attention to detail, an intuition for quality, and extensive research. Both require tireless vigilance and ongoing expert management. And both require a vision for a collection that’s greater than the sum of its parts.

Omar has been honing these skills for over 25 years as a patent agent and global IP strategist extraordinaire. Registered as a Canadian and United States patent agent, Omar has extensive experience in drafting and prosecuting iron-clad patent applications domestically and globally for some of the world’s largest and most reputable companies, in areas such as pharmaceuticals, biomedical devices, water treatment, agriculture, urethane chemistry, and industrial tailings treatment processes. He is consistently ranked in IAM Patent 1000, a guide that identifies the very top patent professionals around the globe.

When clients look for assistance in managing and co-ordinating their international patent portfolios, they turn to Omar for advice. Omar also has significant experience in drafting freedom-to-operate and validity opinions, providing support in negotiating and drafting IP licences, and offering invaluable advice in patent litigation matters.

A true cosmopolitan (and Aeroplan points hog), Omar really enjoys travelling. He marks off one or two travel venues from his bucket list each year, and always returns with new inspiration that he shares via culinary expression with his friends, family, and colleagues.

Areas of Practice

  • Patent Prosecution
  • Life Sciences
  • Regulatory and Strategic Patent Advice


  • University of Toronto
    • B.Sc. - 1986


  • Registered Canadian Patent Agent 1988 CIPO
  • Registered U.S. Patent Agent 1988 USPTO

Honours and Awards

  • Who's Who Legal: Patents 2017 (Personal Recognition)
    • WWL says: Omar Nassif provides clients with over 25 years of experience in patent matters and is particularly adept when handling international patent portfolios.
  • iam1000 - The World's Leading Patent Practitioners 2017 (Personal Recognition)
    • "Pharmaceuticals expert Omar Nassif manages portfolios skilfully and provides crucial technical support during big-ticket trials."
  • Who's Who Legal: Canada 2016 (Personal Recognition)
    • WWL says: Nassif is "genuinely one of the best around for life sciences applications".
  • Who's Who Legal: Patents 2016 (Personal Recognition)
    • WWL says: With "extensive experience" drafting and prosecuting patent applications, clients say his "broad knowledge and high level of skill make him an asset" to any firm.
  • iam1000 - The World's Leading Patent Practitioners 2016 (Personal Recognition)
    • "Bright spark Omar Nassif has across-the-board experience when it comes to drafting patent applications, always securing watertight protection."
  • Canadian Patent Non-Contentious Attorney of the Year 2015
    • Legal Media Group Life Sciences Awards
  • iam1000 - The World's Leading Patent Practitioners 2015 (Personal Recognition)
    • "Omar Nassif procures international patents for Canadian life sciences entities – work which takes him all over the world. The cosmopolitan operator also prosecutes on Canadian soil and provides invaluable support to the firm’s litigators."
  • iam1000 - The Worlds Leading Patent Practitioners 2014 (Personal Recognition)
  • iam1000 - The World's Leading Patent Practitioners 2013 (Personal Recognition)
    • "The 'phenomenal' Omar Nassif adds 'great strategic value,' offering crucial support to clients in the life sciences sector."
  • iam1000 - The World's Leading Patent Practitioners 2012 (Personal Recognition)
    • "Omar Nassif has a 'brilliant life sciences mind' and is regularly called upon to provide technical support on disputes."