Ian R. Walsworth


  • location icon Denver, CO
    1700 Lincoln Street
    Suite 4000
    Denver, CO 80203
  • location icon Colorado Springs, CO
    1755 Telstar Drive
    Suite 300
    Colorado Springs, CO 80920

Ian R. Walsworth is a partner in the Denver office of Lewis Brisbois and a member of the Intellectual Property & Technology Practice. Ian is a patent attorney registered to practice before the United States Patent & Trademark Office, who has experience practicing in numerous Federal Courts and before the U.S. International Trade Commission and in USPTO proceedings.

Ian advises clients with respect to their intellectual property, and routinely engages in activities to enforce and defend patents, trademarks, copyrights and trade secrets through litigation and arbitration. Ian has successfully resolved IP disputes through mediation as well as by direct negotiation on behalf of his clients. In addition to defending intellectual property rights, Ian has also prepared and prosecuted hundreds of domestic and foreign patents across several technology groups, including medical devices, consumer products, software and Saas.

Recent Achievements
  • As lead counsel, obtained a rare award of treble damages in connection with a previous finding of willful patent infringement of all three asserted patents, with the court ultimately entering a final amended judgment exceeding $5.2 million in damages and costs. Through post-trial motions, secured a permanent injunction prohibiting defendant from making, using, selling, offering to sell, or importing the accused products. After defendant failed to comply with the notice provisions of the injunction, successfully moved for and received an exceptional case order and an award of attorneys' fees.
  • Successfully instituted and quickly concluded an ITC investigation (Section 337) on behalf of a national plumbing equipment manufacturer, identifying six respondents accused of multiple acts of unfair importation. Obtained settlements with four respondents and a Consent Order prohibiting the remaining two respondents from importing, distributing and selling the accused products.
  • Obtained an order disqualifying lead defense counsel from representing the principal defendant in a trade secret misappropriation case.

Prior Experience

  • Sheridan Ross PC, 2006–2017
  • Lewis Scheid, 2003–2006
  • Rockwell Automation, 1998–2002

Representative Cases

  • WCM Industries v. IPS Corp., (Western District of Tenn) — Trial counsel for plaintiff in a patent infringement action involving multiple patents related to bath waste and overflow products. Following two-week jury trial, received a jury verdict in favor of plaintiff on all claims asserted, including a finding of willful infringement by defendant. Successfully defended against counterclaims of invalidity and non-infringement. Received post-trial award of treble damages, entry of permanent injunction and partial award of attorneys' fees.
  • Otter Products, LLC v. Treefrog Development, Inc (D. Colo.) — Represented defendant in patent infringement action involving multiple patents. Accused products sold under popular LifeProof brand. Successfully resolved through private settlement.
  • Thule Organization Solutions, Inc. v. Best Buy Stores, Inc. (D. Colo.) — Represented plaintiff in patent infringement action filed in District of Colorado. Successfully resolved through private settlement.
  • Dr. George Frey v. Medtronic Sofamor Danek USA, Inc. (D. Colo.) — Arbitration demand filed on behalf of plaintiff-surgeon. Successfully resolved through mediation.
  • Intelligent Designs 2000 Corporation v. Sears, Roebuck & Co. et al. (District of Colorado) Counsel for plaintiff in multi-defendant litigation for patent infringement, false advertising under the Lanham Act and violation of the Colorado Consumer Protection Act.
  • SEK Corporation et al. v. Oldcastle Precast, Inc. (Southern District of Indiana) Defended against claims of patent infringement. Reached settlement after briefing on claim construction.
  • StormTrap, LLC v. Oldcastle Precast, Inc. (District of New Jersey) Counsel for defendant in patent infringement action. Resolved through private settlement.
  • Qualmark Corporation v. Data Physics Corporation (District of Colorado) Counsel for plaintiff in dispute over use of “LING” trademark. Successfully dismissed parallel action pending in Northern District of California. Reached private settlement in 2009.
  • R.W. Beck, Inc. v. E3 Consulting, LLC (District of Colorado) Counsel for defendant in copyright infringement action. Motion to dismiss complaint granted by District Court. Action settled after arguments made before the 10th Circuit Court of Appeals.


  • State Bar Admissions
    • Colorado
  • State Supreme Courts
    • Colorado Supreme Court
  • United States District Courts
    • United States District Court for the District of Colorado
  • United States Courts of Appeals
    • United States Court of Appeals for the Tenth Circuit
    • United States Court of Appeals for the Federal Circuit
  • Other Admissions
    • United States Patent & Trademark Office



Colorado Supreme Court

United States Federal Circuit Court of Appeals

10th Circuit Court of Appeals

United States District Court, District of Colorado

United States Patent and Trademark Office


  • American Intellectual Property Law Association
  • American Bar Association, IP Section
  • Colorado Bar Association, IP Section

Awards & Honors

  • Super Lawyers, 2016–2019
  • Super Lawyers, Rising Star, 2010–2015


University of Denver, Sturm College of Law

Juris Doctor, 2005

University of Colorado

Bachelor of Science, Engineering, 1998

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