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Leonid D. Thenor

Of Counsel

901 K Street NW, Suite 850, Washington, DC 20001

Leonid focuses his practice on domestic and international patent prosecution and portfolio management for developers in the electrical, mechanical, and medical fields.

Leonid is highly knowledgeable in a range of disciplines, preparing and prosecuting patent applications before the U.S. Patent and Trademark Office (USPTO) for inventions utilizing electrical engineering, software, networking, automotive, and medical devices technologies. With over 20 years of patent practice experience, he skillfully guides clients through the prosecution process, ensuring their innovations receive the protection that best suits business objectives. Leonid works directly with inventors, patent examiners, and foreign counsel to maintain cohesion across all stakeholders.

When litigation is required, Leonid has significant expertise working with legal and corporate teams in matters involving patent infringement, portfolio analysis, and mergers and acquisitions.

Prior to joining Holland & Hart, Leonid practiced at several boutique intellectual property firms and AmLaw 100 firms in the greater Washington, D.C. area.


Preparation and Prosecution
  • Domestic and international patent preparation and prosecution
  • Standards-related patents
Opinions and Counseling
  • Patent infringement and validity analysis
  • Non-infringement/invalidity opinions
  • Product design counseling
Patent Licensing and Due Diligence
  • Strategic patent acquisitions
  • Product clearances
  • IP due diligence
  • Electrical/Electronic/Computer Science
    • Wireless telecommunications
    • Standards-based technologies
    • Control systems
    • Satellite Communication systems
    • Networks
    • Computer software
    • Circuits
    • Memory
    • Batteries
    • Automotive systems
    • Medical devices


Bar Admissions

Court Admissions

Professional and Civic Affiliations

  • New York State Bar Association, Member
  • District of Columbia Bar, Member

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