Gunnar G. Leinberg

Gunnar G. Leinberg

Troutman Pepper

Recognized since 2018

Rochester, New York

Practice Areas

Litigation - Intellectual Property

Litigation - Patent

Lawyer of the Year Badge - 2022 - Litigation - Patent Lawyer of the Year Badge - 2019 - Litigation - Intellectual Property
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Gunnar works extensively in the software service industry space, successfully assisting clients with navigating the rapidly changing software patenting landscape. His software service industry experience includes work with network traffic management, cloud data services and data management, enterprise management, fintech and insurance technologies, artificial intelligence, internet of things (IoT) and industrial internet of things (IIoT), imaging technologies including positioning and medical imaging, 3d printing, internet and electronic commerce, business methods, blockchain technology, computer hardware, and other software generally.

Additionally, he assists clients in other technology areas, including communications technologies, electrical circuits, semiconductor technologies, refractive and reflective optics, optical detectors, optical communications equipment, laser-related technologies, LED, OLED and other display technologies, energy-related technologies, medical devices and equipment, robotics, electromechanical devices, MEMS devices, microfluidics, and other mechanical disciplines.

Gunnar is regularly involved with overseeing the development and management of patent portfolios for clients, as well as with post-grant administrative proceedings, such as post-grant review of covered business methods, ex parte reexaminations, inter partes reviews, post-grant opposition practice, reissues, and supplemental examinations. He also counsels and assists clients with noninfringement and invalidity property opinions, IP due diligence and IP licensing matters. Gunnar has substantial experience in assisting clients with IP litigation matters, including strategies with suits involving nonpracticing entities.

Gunnar is a frequent speaker on topics such as recent changes in patent practice and procedure; the strategic procurement, management and monetization or defense of patents, trademarks and copyrights; IP risk management; software patent eligibility; and IP licensing matters.


  • 70 Linden Oaks, Suite 210
    Rochester, NY 14625-2804


  • Georgetown University , JD, graduated 1990
  • Syracuse University, BS Electrical Engineering - summa cum laude, graduated 1987

Lawyer of the Year Badge - 2022 - Litigation - Patent Lawyer of the Year Badge - 2019 - Litigation - Intellectual Property

Named "Lawyer of the Year" by Best Lawyers® for:

  • Litigation - Patent, Rochester-NY (2022)
  • Litigation - Intellectual Property, Rochester-NY (2019)

Recognized in The Best Lawyers in America® 2023 for work in:

  • Litigation - Intellectual Property
  • Litigation - Patent

Special Focus

  • Intellectual Property
  • Litigation

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