Alexander T. Katsulis


70 West Madison Street, Suite 3300
Chicago, IL 60602-4207

United States of America

Alex Katsulis is an associate at the firm’s Chicago office where he is a member of the IP procurement and portfolio management practice group and a USPTO-registered patent attorney. Mr. Katsulis focuses his practice on patent prosecution, litigation and post grant proceedings, opinion work, due diligence, and landscape studies. He has experience in foreign and domestic patent related matters involving a variety of technologies, such as microelectronic devices, semiconductors, materials, software, medical devices, digital healthcare systems, mobile device technology, and manufacturing processes.

Mr. Katsulis has experience drafting patent applications, including provisional, non-provisional, and PCT applications, and constructing office actions responses. He has experience drafting opinions such as patentability, validity and strength, non-infringement, and freedom-to-operate opinions. He also has experience in due diligence research and analysis for portfolio acquisitions. Mr. Katsulis has experience with post-grant proceedings, particularly being involved in the preparation of inter partes review petitions, and has drafted motions for pending litigation. He has conducted landscape studies to identify strategic acquisition opportunities and analyzed patent portfolios to discern potentially valuable IP for litigation opportunities.


  • B.S., University of Illinois at Urbana – Champaign (2014)
    (Honors, James Scholar, Materials Science and Engineering concentrating in Electronic Materials)
  • J.D., Boston University School of Law (2018)
    (Journal of Science and Technology Law, Article Editor)


Bar of Illinois, United States Patent and Trademark Office
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