Roy Hardin

Locke Lord LLP

Roy W. Hardin has over thirty years of experience trying patent cases to juries and the bench across the country with a focus on Texas. His patent trial experience ranges from months-long bet-the-company cases for the largest corporations to single day trials for inventor owned companies.

Drawing on his experience obtaining patents as a registered patent attorney early in his career, he uses trial advocacy to leverage intellectual property law principles for his clients. The recent spate of business method and software related patent disputes that can turn on the legal definitions of seemingly plain language require the same patent advocacy skill as more technical mechanical and chemical matters he has handled for years.

Trademark, copyright, trade secret, antitrust and unfair competition litigation all involve intangible property rights and he has broad trial experience in these matters also. He has tried patent cases to judgment/verdict in Texas, Louisiana, Oklahoma, Missouri, South Carolina, Delaware, Washington, and Wyoming.

In recent years he has tried several cases to juries in the Eastern District of Texas and presented Markman hearings in the Marshall, Tyler and Texarkana divisions. He has presented numerous oral arguments to the Federal Circuit in patent appeals beginning in 1983 and continuing to date.

Representative Experience:

  • Enforced pioneer patents in field of commercial explosives, causing Fortune 500 Chemical Company to leave the business.
  • Defended against charges of infringement of diaper patents, including invalidation of competitor’s patents and finding of unenforceability due to competitor’s inequitable conduct before the USPTO.
  • Excluded plaintiff’s survey expert testimony in jury trademark case resulting in finding on appeal that there was insufficient evidence of infringement by client-defendant.
  • Defended chemically complex plastics catalyst patent case involving two of the largest oil companies in the world.
  • Tried intellectual property cases to judgment for Atlas Powder, Fina, Monsanto, Kimberly Clark, ConocoPhillips, and Microsoft.

Education :

  • J.D., with honors, John Marshall Law School, 1975
  • B.S., Chemical Engineering, University of Iowa, 1972

Admissions :

  • Texas
  • U.S. Patent and Trademark Office
  • U.S. Supreme Court

Admitted To Practice :

  • U.S. Court of Appeals for the Federal Circuit
  • U.S. Court of Appeals for the Second Circuit
  • U.S. Court of Appeals for the Fifth Circuit
  • U.S. Court of Appeals for the Tenth Circuit
  • U.S. Court of Appeals for the Eleventh Circuit
  • U.S. District Court for the Eastern District of Texas
  • U.S. District Court for the Western District of Texas
  • U.S. District Court for the Western District of Oklahoma


Rate : $$$

What types of cases Attorney Roy Hardin & Locke Lord LLP can handle?
Locke Lord LLP can handle cases related to laws concerning Copyright Application, Litigation, Business, Advertising, Intellectual Property, Trademark infringement, Telecommunications. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Locke Lord LLP located?
Locke Lord LLP is located at Chase Tower, 2200 Ross Ave #2800, Dallas, TX 75201, USA. You can reach out to Locke Lord LLP using their phone line 214-740-8556. You can also check their website or email them at [email protected].
How much would it cost to hire Locke Lord LLP?
Roy Hardin lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
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Locke Lord LLP
Chase Tower, 2200 Ross Ave #2800, Dallas, TX 75201, USA
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