Geoffrey de Kleine  


Executive Summary

​Geoffrey de Kleine is Regional Manager of our Intellectual Property Practice Group in our Vancouver office.  A registered Canadian and US patent agent as well as a professional engineer, Geoffrey focuses his patent practice on the drafting and prosecution of patent applications in all areas of the materials and metallurgical, mechanical, electrical and electronic fields, advising on intellectual property management, providing patentability searches and opinions, and advising on patent protection strategies.

Geoffrey achieved the highest overall standing in the Canadian patent agent examinations in his qualifying year (2001). Prior to joining BLG, he worked as an engineer from 1996 to 1999, and also worked at a leading IP boutique.

Representative Work

  • Drafting and prosecuting patent applications in Canada, the US and internationally for major Canadian and international clients.
  • Developing and providing opinions on patentability, infringement, validity, inventorship, and freedom-to-operate issues.
  • Undertaking IP due diligence reviews.
  • Advising on patent filing and IP portfolio strategies.

Testimonials & Rankings


  • "Mr de Kleine is thorough in his approach; he makes an effort to check details and get confirmations before acting, often anticipating situations and thereby preventing potentially costly mistakes."— Lexology Client Choice Awards, 2016
  • "He always has his clients' best interests at heart, providing quality service without incurring unnecessary costs." — Lexology Client Choice Awards, 2016
  • "Mr de Kleine is personable and it is a pleasure to work with him; he is hands down my top choice for patent prosecution in Canada and I trust his advice completely."— Lexology Client Choice Awards, 2016
  • "He is knowledgeable and provides practical solutions and recommendations."— Lexology Client Choice Awards, 2016


  • Recognized in the 2018 edition of Managing Intellectual Property's IP Stars (Patent Star).​
  • Recognized by the 2016 Client Choice Awards as the exclusive winner in the Patents category in British Columbia.
  • Recognized in the 2018, 2017, 2016 and 2015 editions of IAM Patent 1000 – The World's Leading Patent Practitioners (Patent Prosecution).
  • Recognized in Managing Intellectual Property 2014 — IP Star (Patent, Patent opinion, Patent prosecution, Patent strategy and counselling).