David M. Krinsky

Williams & Connolly
Washington, D.C.

Practice Area: Patent, Technology

    All Star


    “David is extremely valued for his trial skills and deep expertise.”
    “He understands the subject matter better than most.”
    “David knows our business inside and out – we consider him a valued partner.”


    David Krinsky is a litigator who focuses on patent and other high-technology litigation. He has litigated major patent cases in technical fields ranging from molecular biology and medicinal chemistry to software, telecommunications, and energy. As a former software engineer, David focuses a significant part of his practice on litigation in the field of computer technology, and he has defended several major software companies against charges of patent infringement. Another significant portion of David’s practice is Hatch-Waxman pharmaceutical patent litigation, in which David has worked to uphold the validity and infringement of patents covering both active pharmaceutical ingredients and pharmaceutical formulations. In addition to practice before the federal district courts, David has an active appellate practice, having argued multiple appeals before the U.S. Court of Appeals for the Federal Circuit.

    David also is a registered patent attorney who routinely appears before the Patent Trial and Appeal Board of the U.S. Patent and Trademark Office in inter partes review (IPR) proceedings. In this capacity, he has served as lead counsel in numerous IPRs in the software industry as well as on behalf of pharmaceutical clients.

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