William M. Parrish

About William Parrish

Bill Parrish has approximately 40 years of experience representing plaintiffs and defendants in intellectual property and other complex commercial litigation. For multiple years, he has been listed in The Best Lawyers In America® (Woodward/White, Inc.) for Bet-the-Company Litigation, for Commercial Litigation, for Patent Litigation and for Intellectual Property Litigation. For over 30 years he has been rated in Martindale-Hubble® Peer Review Ratings as “AV® Preeminent ™), the highest possible peer review rating in legal ability and ethical standards. For many years he has also been named in Texas Monthly, Super Lawyers®, (published by Thompson Reuters).

His experience includes jury trials, bench trials and appellate proceedings in both state and federal court, AAA and private arbitrations, and numerous mediations. Although his practice has involved a wide spectrum of complex commercial cases, the emphasis has been on intellectual property disputes (e.g., trade secret, trademark, trade name, trade dress, copyright and patent disputes), business torts (e.g., unfair competition, deceptive trade practices, tortious interference with actual and prospective contracts and/or business relationships, fraud, breach of fiduciary duty, unfair advertising practices, etc.), and breach of contract claims. He also has experience representing plaintiffs in employment discrimination and other employment claims. He also has extensive experience in representing companies and individuals in connection with claims brought by various regulatory bodies, including the Attorneys General of over 20 different states, and the Federal Trade Commission.

Bill Parrish was named the Best Lawyers® 2020 Patent Litigation “Lawyer of the Year” in Austin.

In addition to litigating cases, he serves as a neutral mediator.

  • University of Texas at Austin (B.A., Plan II with honors, 1975; Phi Beta Kappa; named The University of Texas Outstanding Student, 1974 (1of 2 awarded); Edward S. Guleke Student Excellence Award, 1976)
  • University of Texas School of Law (J.D., 1978)
  • University of Texas School of Law Center for Public Policy Dispute Resolution (Mediator Training, 2004)
  • U.S. District Courts for the Eastern, Western, Southern and Northern Districts of Texas.
  • U.S. Court of Appeals for the Federal Circuit and for the Fifth Circuit.
  • Licensed to practice in the state courts of Texas
  • Selected for The Best Lawyers in America, for Bet-the Company Litigation, Intellectual Property Litigation and Commercial Litigation, multiple years (a Woodard/White, Inc. publication).
  • Parrish was named the Best Lawyers® 2020 Patent Litigation “Lawyer of the Year” in Austin, Texas.
  • Rated AV Preeminent – Highest possible peer review rating in legal ability and ethics for over 30 years, 1986- 2017, Martindale Hubbell.
  • Texas Super Lawyers, Intellectual Property and Business Litigation multiple years (a Thompson Reuters business).
  • American Bar Foundation (Life Fellow)
  • Texas Bar Foundation (Life Fellow)
  • Austin Bar (Fellow)
  • Robert W. Calvert Inn of Court, Emeritus member – current ; Executive Committee Member, 2000-2006; President, 2004/2005 term
  • American Bar Association (Litigation and Intellectual Property Sections)
  • State Bar of Texas (Litigation, Intellectual Property and Computer Law Sections)
  • Austin Bar Association (Litigation Section)
  • American Bar Foundation (Life Fellow)
  • Texas Bar Foundation (Life Fellow)
  • Austin Bar (Fellow)
  • Speaker on IP litigation topics at multiple seminars sponsored by the State Bar of Texas, including the Advanced Intellectual Property Law Course, the Advanced Civil Trial Course and the High Technology Litigation Course.