James P. Zeller

Mark Hagedorn advises on a wide variety of intellectual property matters, including patent, trademark and copyright solicitation and IP litigation, licensing and counseling. Appreciated for his honesty and practical legal advice, Mark consistently delivers utilitarian solutions that help his clients resolve disputes and litigation efficiently and economically. Mark offers broad experience in virtually all phases of IP counseling and litigation. He understands and has represented clients invol...

Brad protects the intellectual property rights of companies with strategic portfolio development and litigation. He is a registered patent attorney with the U.S. Patent and Trademark Office and has litigated numerous cases through trial verdict—cases involving complex patented technology, design patents, trademark rights to protect market position, as well as false advertisement and unfair competition claims. Throughout his career, he has guided companies to minimize the risk of infring...

Diana Z. Bowman is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law. Diana Z., who practices law in Chicago, Illinois, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Diana Z. is held by other top lawyers in the same geographic and legal practice area.

Matthew J. Cannon is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar and Qui Tam Law. Matthew J., who practices law in Chicago, Illinois, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Matthew J. is held by other top lawyers in the same geographic and legal practice area.

Tracy Brammeier is no stranger to tort law, having worked as a clerk at the firm for years and then jumping into courtroom work and complex tort cases. In fact, her intelligence and legal acumen have led her to already have worked on some of the biggest lawsuits filed at the firm, led by partners directing the cases. She works closely with partner Kevin P. Durkin handling many transportation accident matters. Tracy has worked on several cases involving bicyclists struck by trucks, a man who s...

Joseph has close to 20 years of experience advising financial institutions on corporate and securities matters. Joseph uses a practical and efficient approach to help clients achieve their goals and has successfully completed over 100 M&A and capital market transactions. He also actively serves as outside corporate counsel for bank clients, including publicly traded companies. Joseph is co-chair of Barack Ferrazzano's Financial Institutions Group. He is a frequent speaker at industry conf...

Timothy Ray is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Timothy, who practices law in Chicago, Illinois, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Timothy is held by other top lawyers in the same geographic and legal practice area.

Francis A. Citera is Co-Chair of the firm's Products Liability & Mass Torts Litigation Group and Co-Chair of the Chicago Litigation Practice. Frank has 30 years of experience defending purported class actions, toxic tort actions, and other complex litigation in both federal and state courts. He has tried many cases, including an action by the Government to enforce a unilateral administrative order, an allocation case among potentially responsible parties, and a complex product liability, ...

Steven (Steve) S. Scholes is the global head of McDermott’s Litigation Practice Group. His practice focuses on SEC investigations, shareholder litigation, including class and derivative actions, and internal investigations. Steve is an experienced trial lawyer, and he has tried civil, criminal and administrative cases in federal and state courts. He regularly represents clients before the Securities and Exchange Commission, state securities regulators and self-regulatory organizations, ...

Sherry L. Rollo counsels clients in all areas of intellectual property, including the protection, licensing, and enforcement of intellectual property rights, data privacy, and data security both domestically and internationally. Sherry also guides clients with corporate strategies relating to the prosecution, merger, licensing, sale, or acquisition of intellectual property assets, including conducting due diligence, counseling on business strategies, and managing patent, trademark, copyright,...