(312) 236-8500

Stephen B. Heller – Retired

Tel: (312) 236-8500
Fax: (312) 236-8176

Mr. Heller studied aerospace engineering at Iowa State University in Ames, Iowa, and received a Bachelor of Science degree, with honors, in 1977. Following his graduation from Iowa State University, he attended the University of Illinois College of Law in Champaign, Illinois, and was awarded his Juris Doctor, cum laude, in 1980.

After graduation from University of Illinois, Mr. Heller joined the firm of Leydig, Voit, Osann, Mayer & Holt in Chicago, specializing in intellectual property law matters. He has been with Cook Alex or a predecessor since 1986, specializing in patent, trademark and related unfair competition matters.

With over 40 years of experience, Mr. Heller’s practice has spanned a wide range of intellectual property law matters. He has extensive experience in patent litigation matters, patent validity and infringement analysis, patent prosecution, license and agreement preparation, trademark clearance and registration, and general client counseling. He presently represents a wide variety of clients in a broad range of technical fields.


1980 University of Illinois, Juris Doctor, cum laude

1977 Iowa State University, B.S. Aeronautical Engineering, with honors


State of Illinois

U.S. Court of Appeals for the Federal Circuit

U.S. District Court for the Northern District of Illinois

U.S. Patent & Trademark Office