Calvin R. Nelson

Nelson Calvin
Calvin Nelson’s practice covers a wide range of intellectual property matters, including patent litigation, trademark and brand protection, and anti-counterfeiting. Calvin has extensive experience in litigating intellectual property disputes in federal courts and before the U.S. International Trade Commission. He has represented clients in a wide variety of fields, including smartphone technology, mobile applications, and enterprise software.

As a former federal law clerk, Calvin has particular experience in federal litigation. In 2011, he briefly left Venable to serve as an inaugural law clerk to the Honorable Robert L. Wilkins in the U.S. District Court for the District of Columbia, now a judge on the U.S. Court of Appeals for the DC Circuit. As a law clerk, Calvin advised Judge Wilkins on a variety of pending complex civil, administrative, and criminal matters. 


Representative Matters

  • Representing the defendants in a patent lawsuit involving address handling within mobile devices. Case is ongoing. (Arendi S.A.R.L. v. Sony Mobile Communications, et al.)
  • Represented the defendant in a patent lawsuit involving encryption and user authentication technologies in computers and mobile devices. (MAZ Encryption Technologies, LLC v. BlackBerry Corp.)
  • Obtained a favorable settlement on behalf of VBrick Systems, Inc. in a trademark infringement action brought by, Inc. in the Northern District of California, enabling VBrick to continue using its mark. (, Inc. v. VBrick Systems, Inc.)




  • J.D. University of Virginia School of Law 2007
    • Article Review Board, Virginia Journal of Law & Technology
  • B.A. Biology Johns Hopkins University 1998

Bar Admissions

  • District of Columbia
  • Virginia

Court Admissions

  • U.S. District Court for the Eastern District of Virginia

Clerk Experience

  • Honorable Robert L. Wilkins U.S. District Court for the District of Columbia 2011 - 2012

Professional Memberships and Activities

  • Member, American Bar Association, Intellectual Property Law Section


  • Super Lawyers, Rising Star, Washington, DC, 2015 – 2016, 2018