Charles represents clients in patent, trademark, and copyright disputes. He serves as lead trial counsel in jury trials and has taken numerous cases through trial. Charles represents clients in U.S. district courts, state courts, and adversarial proceedings before the USPTO, both as plaintiff’s and defense counsel. His significant track record includes defeating claims alleging more than $6 billion in damages and achieving a $40 million damages award and permanent injunction in patent litigation.

Charles’ clients span various industries, including banking, consumer products, oilfield drilling technologies, and financial transaction processing. His extensive litigation experience across diverse technologies and industries allows him to view each client’s unique litigation matter through the lens of vast experience. Clients benefit from Charles’ ability to focus on key issues and deliver practical legal advice that supports informed business decisions.

• Repeat Precision, LLC v. Diamondback Industries, Inc., 6:19-cv-00036-ADA (W.D. Tex.) Represented plaintiff in patent litigation matter pending before U.S. District Judge Alan D Albright; plaintiff won at trial, receiving a damages award of over $40 million and a permanent injunction.
• CloudofChange, LLC v. NCR Corporation, 6-19-cv-00513-ADA (W.D. Tex.) Representing NCR Corporation in multipatent case pending before U.S. District Judge Alan D Albright.
• Panini America, Inc. v. Eli Nicholas Matijevich, Jr. et al., Fanatics, SPV, LLC, DC-23-04798 (44th Civil District Court, Dallas County, Texas) Represent Panini America in this trade secret misappropriation case, obtaining a temporary restraining order and negotiating an agreed temporary injunction.
• Rex Real Estate I, L.P. v. Rex Real Estate Exchange Inc., 1:19-cv-00696-RP-AWA (W.D. Tex.) Represented plaintiff in this trademark lawsuit before U.S. District Judge Robert Pitman; case dismissed after defendant ceased using the mark.
• Lodsys v. The Walt Disney Company, 2:13-cv-256-JRG (E.D. Tex) Represented The Walt Disney Company in patent litigation pending before Judge Rodney Gilstrap.
• U.S. Ethernet Innovations, LLC v. Xerox Corporation, 6:12-cv-237-LED (E.D. Tex.) Represented Xerox Corporation in patent case pending before Judge Leonard Davis. Mediated before Jim Knowles.
• TQP Development, LLC v. Branch Banking & Trust Company, 2:12-cv-55-MHS-CMC (E. D. Tex.) Represented Defendant BB&T in patent case pending before Judge Michael H. Schneider. Obtained dismissal with prejudice in favor of BB&T. Mediated before Judge Robert Faulkner.

• The Best Lawyers in America®, Litigation – Intellectual Property, Litigation – Patent (2020–2026)
• IAM Patent 1000 – Recommended for Trade Secret Litigation (2025)
• IAM Patent 1000 (2023)
• D Magazine, Best Lawyers in Dallas (2018, 2022)