W. Cullen "Cullen" McMahon

I help businesses solve problems involving intellectual property (IP) law, business strategy, and technology law with an emphasis on intellectual property rights, patents, trademarks, copyrights, trade secrets, anti-counterfeiting, IP portfolio strategy, and commercial litigation. Intellectual Property Litigation & Business Litigation I have handled more than 500 intellectual property disputes, including over 40 patent infringement cases and hundreds of IP enforcement actions. I also have...

Priya Gupta Arshanapalli is a top attorney recognized by Best Lawyers in the practice area(s) of Venture Capital Law. Priya Gupta, who practices law in Dallas, Texas, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Priya Gupta is held by other top lawyers in the same geographic and legal practice area.

Charles J. Quaid is a top attorney recognized by Best Lawyers in the practice area(s) of Collaborative Law: Family Law and Family Law. Charles J., who practices law in Dallas, Texas, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Charles J. is held by other top lawyers in the same geographic and legal practice area.

Clients throughout the Greater Dallas area hire Robert Epstein when they need an experienced family law attorney with the strategic capabilities, creativity and intense drive to resolve challenging cases both in and out of the courtroom. He guides clients with diverse goals and financial circumstances through all types of family law matters, including divorce proceedings, child custody cases, prenuptial and post-marital agreements, collaborative divorces, modifications of visitation and paren...

David Genender is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. David, who practices law in Dallas, Texas, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David is held by other top lawyers in the same geographic and legal practice area.

Mark Johansen's practice focuses on complex commercial litigation in state and federal courts. He also regularly represents clients in arbitration proceedings before the American Arbitration Association (AAA), Judicial Arbitration and Mediation Services (JAMS), and the Financial Industry Regulatory Authority (FINRA). Mark has handled litigation and arbitrations involving mergers and acquisitions, contract disputes, business torts, labor/employment, trade secrets, securities/shareholder litiga...

Fred S. Stovall is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law and Oil and Gas Law. Fred S., who practices law in Dallas, Texas, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Fred S. is held by other top lawyers in the same geographic and legal practice area.

David Stone is a top attorney recognized by Best Lawyers in the practice area(s) of Product Liability Litigation - Defendants. David, who practices law in Plano, Texas, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David is held by other top lawyers in the same geographic and legal practice area.

Jeffrey B. Simon is a founding shareholder of Simon Greenstone Panatier, PC. Mr. Simon was admitted to the State Bar of Texas in 1993, and is licensed to practice law in Texas, California and New York. An experienced and skilled trial attorney, Jeffrey has excelled at litigating toxic tort and pharmaceutical injury cases for many years after graduating from The University of Texas School of Law in 1993. Prior to law school, Jeffrey graduated Phi Beta Kappa and Magna Cum Laude in 1990 from Col...

Donald E. Herrmann has over thirty-five years of trial and appellate experience in civil litigation, representing individual and commercial clients as both plaintiffs and defendants in matters as diverse as business torts, intellectual property claims, construction disputes, employment disputes, and various contract and property rights claims. He also writes and lectures frequently at state and local continuing legal education programs.