William A. Lowry

Matthew counsels clients on invention harvesting, patent and trademark portfolio management, intellectual property acquisition, domestic and international patent and trademark prosecution, and intellectual property transactions. He has prepared and prosecuted more than 750 patent applications and appeals on behalf of clients, primarily in the mechanical, electrical, electromechanical and software arts. Additionally, Matthew conducts IP asset management for his clients, having extensive experi...

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...

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...

Matt Regan is a partner in Kirkland's Chicago office. He has broad experience representing plaintiffs and defendants in a variety of commercial litigation matters in both state and federal courts. Matt's cases have involved claims in the areas of antitrust and trade regulation, accountant/auditor malpractice, class actions, products liability, software consulting, fraud and breach of contract, and other complex commercial disputes. The Legal 500 U.S. recognized Matt for his work in Energy Lit...

Tamara A. Miller is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property and Trademark Law. Tamara A., 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 Tamara A. is held by other top lawyers in the same geographic and legal practice area.

With more than a decade of experience, Partner Seth L. Cardeli is a skilled trial attorney representing families across the country who have suffered as a result of medical negligence and malpractice, including children who have been injured during labor and delivery. Seth is well-versed in the many complex legal and medical issues surrounding birth injury claims. He regularly conducts educational seminars for other attorneys on important aspects of litigation such as taking depositions and d...

Kathryn Siegel is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Kathryn, who practices law in Chicago, Illinois, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kathryn is held by other top lawyers in the same geographic and legal practice area.

Jonathan Mincieli is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Jonathan, 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 Jonathan is held by other top lawyers in the same geographic and legal practice area.

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

With more than two decades of experience in zoning and land use matters, Chris Leach represents property owners, developers, and business owners in obtaining approvals of planned developments, zoning changes, special uses, variations, subdivisions, vacations, and dedications. Chris also works with clients in real estate, liquor, and business licensing-related matters. Having represented clients before municipal plan commissions, planning departments, zoning board of appeals, zoning committees...