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Dennis Haszko, JD, BSEE

Senior Patent Agent (US & Canada)


“Helping clients build their business by protecting their intellectual property is the most meaningful part of my role.”

From his location in Ottawa, Ontario, Dennis focusses on developing Canadian-based clients for filing in the US and abroad, while supporting the firm's clients around the world for all USPTO filings.

Dennis began his patent career as a USPTO Patent Examiner in the motor/generator arts reviewing applications ranging from magnetically-levitated trains to chip-level micromotors along with related circuitry applications.

Since completing his law degree, Dennis has held several roles in both the US and Canada working as in-house patent counsel for multinational corporations within the telecommunications sector (Nortel Networks Limited) and, more recently, within the medical device sector (Baylis Medical Company and Boston Scientific Corporation).  Dennis also has many years working within private practice for firms of all sizes ranging from "national" to "boutique." His experiences along the way have become an asset for his clients assisting them to build value in their IP portfolios while providing them with the guidance to make better business decisions.

Dennis is well-versed in the procurement of patents, having examined, drafted, and prosecuted an accumulation of well over 600 US patents and many more corresponding foreign patents across a broad spectrum of technical processes, products, and advanced technologies.

Outside of the office, Dennis keeps busy skiing, cycling, snowshoeing, and hiking in both the Gatineau Hills near his Ottawa home and the mountains of Western Maine near his vacation property.  

Contact Dennis




  • Mechanical and electromechanical devices

  • Telecommunications

  • Medical and surgical devices and processes

  • Automation

  • Computer-implemented inventions


J.D., Franklin Pierce School of Law, University of New Hampshire, 1998

B.S., Electrical Engineering, Ohio University, 1990


  • US Patent and Trademark Office, 1995

  • Canadian College of Patent & Trademark Agents, 2003

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