Gregory G. Schlenz

Gregory G. Schlenz


Chicago, IL

Main: 312.463.5000 Fax: 312.463.5001


Greg concentrates his practice in utility and design patent prosecution, client counseling, portfolio development strategy, and opinion work, and also has experience in trademark prosecution, litigation, licensing, confidentiality and research agreements, trademark opposition proceedings, and due diligence and other investigations.  Greg has prepared and prosecuted hundreds of utility and design patents and managed patent portfolios and prosecution strategies across numerous different jurisdictions.  Greg has also prepared and participated in both ex parte and inter partes reexamination proceedings and has argued before the Patent Trial and Appeal Board.

Greg's patent practice focuses primarily on metallurgy and materials, mechanical devices and articles of manufacture, fitness apparel and equipment, plumbing valves and other components, computer and communication systems, medical devices, and athletic performance tracking devices and systems. He also has experience in such fields as mining technology, hydrocarbon processing, food science, paperboard manufacturing, aerospace, and thin film lamination and production techniques. 

Greg earned a degree in materials science and engineering at the University of Illinois at Urbana-Champaign, and his law degree at the University of Illinois College of Law. His legal practice is enhanced by his science education, and also his experience in industry. He was a Metallurgist at ALCOA, where his focus was on designing and  improving heat treating processes for sheet materials. He also trained in metallurgy at LTV Steel.

  • University of Illinois at Urbana-Champaign
    1999, B.S., Materials Science & Engineering
  • University of Illinois College of Law
    2002, J.D.

Bar Admissions

  • 2002, Illinois

Court Admissions

  • Supreme Court of Illinois
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. Court of Appeals for the Seventh Circuit
  • U.S. District Court for the Northern District of Illinois
  • U.S. Patent and Trademark Office

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