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Practice Areas

  • Branding and Marketing
  • Consumer Products Development
  • Data and Privacy
  • Intellectual Property Litigation
  • Intellectual Property Strategic Counseling
  • Patents
  • Software Audits
  • Semiconductor
  • Trademark and Trade Dress Litigation
  • Trade Secrets and Unfair Competition

Admissions

  • Arizona
  • District of Columbia
  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. Court of Appeals, Federal Circuit
  • U.S. District Court, Eastern District of Texas
  • U.S. District Court of Vermont

Isaac S. Crum

Partner

Phone: 602.641.6705
Email: icrum@messner.com
Office: Phoenix

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Isaac S. Crum assists business clients in developing, protecting, and enforcing intellectual property rights through consulting and litigation. His experience includes advising consumer product companies, startups, and non-profit organizations on intellectual property strategies and litigating complex cases involving patents, trademarks, trade dress, copyrights, trade secrets, and unfair competition.

Isaac crafts practical IP strategies to address today’s challenges in global e-commerce and that has given him opportunities to help companies protect their brands from knockoffs on platforms such as Amazon, eBay, and Etsy. Isaac is also well-versed in assisting non-profit organizations with developing and securing their IP portfolios to support their growth and expansion and to advance their mission.

In addition to IP portfolio management consulting, Isaac has a strong track record representing companies in high-stakes patent litigation before the International Trade Commission and in district courts nationwide. His cases range from defending Fortune 10 companies in semiconductor disputes to representing small businesses and startups in trademark and patent disputes across multiple jurisdictions. His IP litigation experience includes trademark opposition proceedings, appeals to the Federal Circuit, and cases before the U.S. Supreme Court.

Isaac’s educational background in computer engineering gave him a strong technical foundation for his IP work. After law school at the University of Arizona, he gained valuable experience at two top international law firms in Washington, D.C., before returning to Arizona to continue his practice and raise his family.

Isaac Crum Best Lawyers - Lawyer Logo

  • University of Arizona, James E. Rogers College of Law (J.D., 2008)
  • University of Arizona (B.S.C.E., 2003)
    • Major: Computer Engineering
  • Southwest Super Lawyers® – “Rising Star” 2015-2019 (Intellectual Property)
  • Best Lawyers in America®, 2023-2025 (Patent Litigation)
  • Arizona Business Leaders, Law Section 2025
  • AZ Big Media Award
  • Arizona State Bar Association Intellectual Property Section, Executive Council
  • American Intellectual Property Law Association, Member
  • Maricopa County Bar Association, Member
  • Pima County Bar Association, Member
Representative Experience
  • Secured a landmark $21M jury verdict for design patent and trademark infringement.
  • Representing a global spirits manufacturer in intellectual property counseling, trademark enforcement, litigation, and appeals.
  • Obtained a multi-hundred-million-dollar award for a plaintiff against a software company for patent infringement.
  • Successfully represented one of the largest spirit brands in the world at trial and before the 9th Circuit and U.S. Supreme Courts.
  • Successfully litigated multi-hundred-million-dollar case on behalf of an Arizona plaintiff against a large pharmaceutical company over gene expression systems and failure to pay
  • Performing ongoing IP clearance work and product development consulting for one of the largest puzzle and game manufacturers in the world.
  • Representing trademark infringement clients around the country and before the United States Patent and Trademark Office.

Learn More About Our Capabilities

We’ve built a team we are proud of.
Learn how we’ve grown over the past 25 years.

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Messner Reeves LLP
1550 Wewatta St. Suite 710
Denver, CO 80202
Phone: (303) 623-1800.