Roger A. Heppermann

Joe Madonia is leader of the firm’s Environmental Litigation team. For more than 25 years, Joe has defended and counseled clients on a wide array of toxic tort and environmental matters at the local, regional and national levels. Joe delivers strong skills as a litigator, multifaceted trial experience, and the regulatory know-how and scientific depth needed to problem-solve at virtually any level of sophistication or difficulty. His experience includes serving as national trial counsel ...

Steve Patton is of counsel to the Litigation group in the Chicago office of Kirkland & Ellis LLP. Steve has extensive experience trying cases and arguing appeals in federal and state courts throughout the country in a wide variety of commercial disputes. He has also served as an advisor to senior management in a number of “bet the company” exposures and negotiated several multibillion settlements in complex disputes. Steve is a Fellow of the American College of Trial Lawyers a...

Frank J. Bertuca is a trial attorney at Katz, Friedman, Eisenstein, Johnson, Bareck & Bertuca PC in Chicago, Illinois. His practice focuses on Workers’ Compensation Law - Claimants , representing injured workers throughout Illinois in claims involving workplace injuries, occupational illnesses, and related disputes. Since joining the firm in 1999, Frank has handled trial and appellate matters for clients working in the airline, automotive manufacturing, construction, law enforcement...

Jeffrey G. Mote is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law and Trademark Law. Jeffrey G., who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jeffrey G. is held by other top lawyers in the same geographic and legal practice area.

Thomas J. Wimbiscus, a shareholder with McAndrews, has more than thirty years of experience and practices in all areas of intellectual property litigation, with a special emphasis on patent and trademark litigation. He has appeared in over 100 litigations and over 100 inter partes reviews (IPRs). He was named one of the 10 most active IPR practitioners in the U.S. for patent owners. (Patexia 2018.) Tom was named as one of the world’s leading patent professionals by IAM Patent 1000 in 20...

Margaret Anderson is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. Margaret, who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Margaret is held by other top lawyers in the same geographic and legal practice area.

Francis Patrick Murphy - Patrick Murphy - a Chicago personal injury lawyer, has been with the law firm of Corboy & Demetrio since 1983 and became a partner in 1991. He regularly handles complex personal injury and wrongful death cases involving porch and deck collapses, aviation negligence, construction negligence, product liability, premises liability and claims resulting from railroad, automobile, and other vehicular negligence. Patrick is a highly sought after lawyer in porch and deck ...

Peter H. Lieberman is Co-Chair of the Chicago Corporate & Securities Practice. He has more than 20 years of broad experience in mergers and acquisitions, public company, and hedge fund matters, private equity, start-up and venture capital, and related securities regulation issues. Peter brings to his work a diverse transactional background, including a decade-long involvement in hedge fund transactions and securities trading and hedging issues. He has been involved in scores of PIPE and r...

In each year since 2015, Bryan has been listed in the IAM Patent 1000 – The World’s Leading Patent Professionals for Litigation. He is also recognized in Patent Litigation: Full Coverage in the 2018, 2021 and 2022 editions of The Legal 500 United States. Bryan has litigated and counseled on patent matters for companies of various sizes across a variety of complex industries and technologies including medical devices, optical networking, pharmaceuticals, 3-D technology, material co...

Martin G. Durkin is a trial lawyer whose practice includes antitrust and commercial litigation. He has successfully litigated business and transactional disputes, and tried many complex commercial matters. Mr. Durkin's practice is focused on commercial matters, including breach of contract, business torts, RICO, securities fraud and consumer fraud. Mr. Durkin has also represented a number of Fortune 500 companies in the defense of class actions and mass actions. Representative Matters Class A...