HFZ is a boutique IP law firm located in the heart of Chicago, specializing in United States and foreign patent prosecution and counseling.  Our team of patent practitioners includes many individuals having years of industry experience as engineers and inventors prior to becoming patent attorneys.  A combination of significant real world engineering experience and legal experience results in a highly focused and skilled team of practitioners who provide services to numerous Fortune 500 technology companies.

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Hanley, Flight & Zimmerman, LLC

Tom Koltun

Jim Flight

David Mittel

Mark Zimmerman

Matthew C. Mcneill

Patent Law Team

Leadership Team

Legal Team

Accounting and Finance Team

Teams at Hanley, Flight & Zimmerman, LLC

Patent Law Team

Leadership Team

Legal Team

Accounting and Finance Team