John H. Mathias, Jr.

Jonathan P. Froemel, a partner in the Chicago office of Barnes & Thornburg, is a member of the firm's Intellectual Property and Litigation Departments. Jonathan's intellectual property practice focuses on trademark prosecution and trademark, copyright and patent litigation, trademark prosecution and licensing. His litigation practice includes general commercial, construction, environmental, and real estate disputes. Jonathan represents clients in actions across the United States and has l...

Grant H. Peters is a partner in the Chicago office of Barnes & Thornburg, a member of the Intellectual Property Department, co-chairman of the Climate Change Practice Group, a member of the Professional Responsibility Committee, and a member of the Internet and Technology Law, Advertising and Marketing, and Nanotechnology Practice Groups. Grant is an experienced attorney with a broad national and international practice focused on intellectual property development, management, protection, ...

Stephen M. Fatum is a partner in the Chicago office of Barnes & Thornburg. He concentrates his practice in the Healthcare Department. Stephen's focus has been on legal and strategic matters affecting physicians, physician organizations and not-for-profit corporations. Stephen routinely negotiates employment agreements, stock transfer agreements, operating agreements and affiliation agreements. He also defends physicians subject to disciplinary proceedings.Stephen is the former general cou...

John represents large publicly traded and privately held businesses in controversies, transactional matters and tax planning involving state and local corporate income/franchise taxes, gross receipts taxes, sales and use taxes, and other business privilege taxes. He also defends clients in state tax audits and litigation before courts, administrative agencies and departments of revenue throughout the country. In addition to his state and local tax practice, John is also one of the nation&rsqu...

With more than 30 years of experience, Eric Berg focuses his practice on litigation and transactional construction law. As a litigator, Eric has represented owners, contractors, subcontractors, architects, engineers, and lenders in trials, arbitrations, and mediations. Eric’s transactional work includes drafting and negotiating contracts for the design, construction, rehabilitation and construction management of hotels, hospitals, office buildings, apartment buildings, casinos, transit ...

Mr. Anderson is a nationally recognized trial lawyer with 37 years of experience at Winston & Strawn LLP. He is a Fellow of the American College of Trial Lawyers who has tried many cases to verdict before federal and state courts and who has has argued many times before federal and state courts of appeal, including two arguments before the United States Supreme Court. Mr. Anderson served for many years as the General Counsel and Member of the Executive Committee of Winston & Strawn LLP.

Derek G. Barella is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Derek G., who practices law in Chicago, Illinois, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Derek G. is held by other top lawyers in the same geographic and legal practice area.

Keith H. Berk is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Keith H., who practices law in Chicago, Illinois, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Keith H. is held by other top lawyers in the same geographic and legal practice area.

Darren M. Mungerson is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Darren M., who practices law in Chicago, Illinois, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Darren M. is held by other top lawyers in the same geographic and legal practice area.

Phillip W. Nelson is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. Phillip W., 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 Phillip W. is held by other top lawyers in the same geographic and legal practice area.