Michael P. O'Brien

Ryan Hargrave’s practice focuses on intellectual property disputes and complex commercial litigation in federal courts across the country, as well as the United States Patent and Trademark Office. She has successfully managed and tried matters spanning a broad range of technologies and industries, including pharmaceuticals, wireless networking, cellular networking, file sharing and storage, and downhole oilfield tools. Ryan is experienced and skilled in all aspects of complex litigation...

Mark Nelson is a partner in Barnes & Thornburg's Intellectual Property and Technology practice based in Dallas and Houston. He has more than 20 years of experience litigating large, multifaceted patent infringement cases in federal district courts and before the International Trade Commission. Mark also has experience in post-grant proceedings, including both inter partes and covered business method reviews (“IPRs” and “CBMs”). Mark's experience in patent litigatio...

Heather S. Bethancourt represents clients in business process and information technology outsourcing transactions. She has extensive experience representing healthcare systems, carriers and vendors negotiating revenue cycle management outsourcing agreements and other complex outsourcing and commercial transactions. In addition, she represents clients in strategic supply agreements, manufacturing and distribution agreements, technology licensing, technology maintenance and service agreements, ...

For over 25 years, Dawn's practice has focused on trial work, representing a variety of large and mid-sized corporate clients in claims involving a wide range of litigation topics. Dawn is an AV Preeminent® rated lawyer with a proven ability to manage and resolve sophisticated disputes. Dawn is comfortable in state and federal courts and arbitrations. Dawn serves as a court-appointed mediator, and she also serves on the American Arbitration Association's National Panel of Commercial and E...

Hugh Connor is a partner in the Litigation Section at Kelly Hart, where he excels in representing a diverse clientele that includes individuals, corporations, and other institutions. He specializes in a broad spectrum of intricate commercial litigation cases, ranging from intellectual property disputes and professional malpractice to oil and gas conflicts, contract disputes, insurance claims, defamation cases, construction claims, probate litigation, and marital disputes. Mr. Connor’s e...

Aimee G. Szygenda is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Aimee G., who practices law in Dallas, Texas, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Aimee G. is held by other top lawyers in the same geographic and legal practice area.

Steve Schulte is a partner and trial attorney who has devoted his career to exclusively representing individuals and families harmed by unsafe practices and products. Mr. Schulte co-founded and developed the firm's asbestos department, which has cases pending in courts across the country. He has represented clients in injury and death cases arising from exposures to toxic substances, defective drugs and medical devices, car and commercial truck accidents, workplace injuries, firearms, animal ...

John Penn is a partner in the Business practice focusing on bankruptcy and workouts. During his more than three decades of counsel, John has represented secured and unsecured creditors, debtors, trustees and unsecured creditor committees in major and high-profile reorganizations and insolvency proceedings. John is a Fellow of the American College of Bankruptcy and past president of the American Bankruptcy Institute. He is certified by both the American Board of Certification and Texas Board o...

Bill Cramer protects his clients’ valuable rights in various aspects of intellectual property, including patent, trademark, copyright, and trade secret matters. Bill is an experienced litigator who represents plaintiffs and defendants in patent, trademark, and copyright infringement lawsuits in district courts throughout the United States. He also represents clients in trademark opposition and cancellation proceedings at the Trademark Trial and Appeal Board (TTAB), inter partes review p...

Andrew Graben is an experienced litigator with more than a two decades of experience in state and federal courts across the country. Andrew has successfully represented a wide range of clients, from Fortune 500 companies to growing founder-led businesses. But regardless of the client or the subject matter, he is committed to providing his clients with three core benefits: results, service, and value. Andrew’s practice is focused on business and intellectual property litigation, but he a...