Jeff Leuschner
Associate, Ottawa
Patent Agent


Phone: 613.232.2486
Fax: 613.232.8440
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  • Queen's University B.Sc. (Electrical Engineering) 2005
  • Queen's University M.Sc. (Electrical Engineering) 2007; thesis titled A New Maximum-Likelihood Metric Expression for Space-Time Block Codes with Applications to Decoding Area: Wireless communications, specifically Multiple-Input Multiple-Output (MIMO) systems
  • Registered Patent Agent 2009
  • Registered to practise before the United States Patent and Trademark Office

Jeff Leuschner's practice focuses on the drafting and prosecution of patent applications in the fields of electrical and computer engineering. Jeff has specialized knowledge in a variety of technical disciplines, including wireless communications, cryptography, and the physical layer of networks.

Jeff regularly files and prosecutes patent applications in both the U.S. and Canadian patent offices, as well as in patent offices overseas through foreign associates.

Prior to entering the patent profession, Jeff pursued graduate studies in the field of electrical engineering, and he is named as a first author in papers published in IEEE Transactions on Information Theory and IEEE Transactions on Wireless Communications.‎

Jeff is a member of IEEE. He is also an editor of IP Update — Canada, the firm's intellectual property law bulletin.

Software/Information Technologies


  • Member, Institute of Electrical and Electronics Engineers


  • "Canada to participate in a new global PPH pilot program," IP Update — Canada, December 4, 2013; Lexology, December 4, 2013; Mondaq, December 5, 2013; International Law Office Intellectual Property Newsletter, December 16, 2013; CCCA Members Knowledge Centre, December 2013
  • "The one-year grace period for patent filing in Canada: An overview for U.S. practitioners," IP Perspectives, Summer 2012
  • "A new generic maximum-likelihood metric expression for space–time block codes with applications to decoding" (co-author: S. Yousefi), IEEE Transactions on Information Theory, vol. 54, 2008, pp. 888-894
  • "On the ML decoding of quasi-orthogonal space-time block codes via sphere decoding and exhaustive search" (co-author: S. Yousefi), IEEE Transactions of Wireless Communications, vol. 7, 2008, pp. 4088-4093.
  • "A new sub-optimal decoder for quasi-orthogonal space-time block codes" (co-author: S. Yousefi), IEEE Communications Letters, vol. 12, 2008, pp. 548-550
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