David L. De Bruin

Barry F. Irwin is a top attorney recognized by Best Lawyers in the practice area(s) of Copyright Law, Litigation - Intellectual Property, Litigation - Patent, Patent Law and Trademark Law. Barry F., who practices law in Chicago, Illinois, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Barry F. is held by other top lawyers in the same geographic and legal practice area.

Daniel T. Ryan is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Plaintiffs, Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Daniel T., 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 Daniel T. is held by other top lawyers in the same geographic and legal practice area.

With over 200 successfully litigated disputes under his belt, and many years of industry experience representing over a dozen automotive clients, Jim brings unmatched talent in resolving the most complex and serious issues those clients face as they interact with dealers in their networks and with state regulators who oversee those business activities. Jim is the founder and former co-chair of the firm’s Motor Vehicle Group. He is also a senior partner in Barack Ferrazzano’s Litig...

As a real estate partner, Brett has more than 20 years of diverse experience advising clients with respect to sophisticated real estate transactions, including acquisitions, dispositions, leasing, development, financings, and joint ventures. Brett is a trusted strategic advisor who maintains a deal-oriented approach with a goal of understanding and achieving his client’s goals in an efficient manner. Brett is thoughtful and highly cost-effective as he concentrates on the material issues...

John E. DeLascio is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law. John E., who practices law in Chicago, Illinois, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John E. is held by other top lawyers in the same geographic and legal practice area.

Lance Zinman, global chair of Katten's Financial Markets and Funds practice, provides comprehensive legal services to asset managers, proprietary trading firms and other participants in the financial markets in need of a single advisor to assist with all aspects of their business. His unique skill set combines a deep understanding of corporate, regulatory, intellectual property and tax law with broad knowledge of the securities and derivatives markets. Using his extensive experience with thes...

Rebecca Fitzpatrick P.C. is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law. Rebecca, 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 Rebecca is held by other top lawyers in the same geographic and legal practice area.

Margaret P. Battersby Black is an award-winning attorney who has played a key role in a number of nursing home and medical malpractice cases at Levin & Perconti. Her commitment to her practice has achieved noteworthy results for clients in all types of personal injury, nursing home, and malpractice matters. She is also committed to the advancement of women in the legal profession and serves as a mentor to law students and younger lawyers. In 2015, she was honored by IIT-Chicago-Kent Law S...

John S. Mrowiec is a founding partner in the firm of Conway & Mrowiec. Mr. Mrowiec represents project participants in arbitration, litigation, mediation, contract drafting and claim preparation. He has tried, arbitrated or mediated several complex cases throughout the United States, most recently, successfully represented a general contractor to recover a seven-figure claim on an urban school project in a multi-week arbitration against a earth retention subcontractor involving the cause o...

Approachable, yet candid in his counsel, Kurt Rohde provides an objective analysis of the issues tied to his clients’ intellectual property assets and best courses of action. In particular, with over 14 years focused in complex patent litigation and large patent portfolio management, Kurt regularly serves as patent trial counsel for multibillion dollar corporations. Kurt helps his clients keep the bigger picture at the forefront by advising on obtaining, evaluating, and enforcing their ...