Photograph of John Sabacinski



  • University of Notre Dame Law School, J.D.
  • University of Chicago, B.S. chemistry (2011)


  • Illinois

Professional Experience

  • BASF
    Chemist I, 2015–2017
    Associate Chemist, 2012–2015
  • The City of Chicago Department of Law
    Volunteer, Legal Information and Prosecutions, 2018

John Sabacinski

Phone: +1 312.840.3243
455 N. Cityfront Plaza Drive
Suite 3600
Chicago, IL 60611

John Sabacinski's practice focuses on patent prosecution and patent and trademark litigation. His previous experience as a chemist in the private sector provides him with unique insight to understand and address his clients’ needs.

While attending Notre Dame Law School, John worked in the IP Clinic where he assisted South Bend residents with various IP needs and made recommendations on the best IP coverage available. He also conducted research on inter partes reviews under Professor Stephen Yelderman and worked for the Legal Information and Prosecutions Department of the City of Chicago Department of Law. While working for the city, he conducted research regarding prosecution and home rule authority implications of city policies and assisted city attorneys in ownership determinations of vacant properties.

Before practicing law, John worked as a research assistant studying catalyst creation, gaining skills in inorganic and analytical chemistry. After completing his undergraduate degree, John worked in the chemical industry at BASF, focusing on battery material research and development. He also participated in patent reviews to identify current state-of-the-art and potential threats to BASF’s IP and ran the department’s analytical lab in the Electrochemical Application Center, where he oversaw three technicians. He was on the first responder team for the site and was the coordinator of the 5S workplace organization program for a department of more than 20 people.


  • Executive Editor, Founding Member, Notre Dame Law School Journal on Emerging Technologies, 2019–2020 
  • President, Notre Dame Law School Intellectual Property Law Society, 2019–2020 
  • Honor Roll, Notre Dame Law School, Fall 2019 
  • Vice President, Notre Dame Law School Intellectual Property Law Society, 2018–2019


  • American Association for the Advancement of Science, Member 
  • American Bar Association, Member 
  • American Chemical Society, Member 
  • American Intellectual Property Law Association, Member 
  • Intellectual Property Law Association of Chicago, Member


Admitted to practice: Illinois

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