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Patrick F. Sullivan

Associate |
Associate | Chicago, IL
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Patrick F. Sullivan is an associate attorney in the firm's Chicago office. Mr. Sullivan is an experienced trial attorney focusing in medical device, long term care, pharmaceutical liability, professional liability, commercial liability, cyber risk and technology, intellectual property and toxic tort litigation.

Mr. Sullivan's products and professional liability experience focuses on defending complex disputes involving allegations of negligence, misconduct, defective design and failure to warn relative to specialized medical devices, proprietary pharmaceutical products and intricate medical procedures. His commercial and intellectual property practice is concentrated on representing corporate and private interests in corporate disputes, banking litigation, UCC, data breach liability and copyright and trademark litigation. 

Prior to joining Segal McCambridge, Mr. Sullivan worked as an insurance defense attorney in Chicago. He earned his J.D. from The John Marshall Law School where he received Dean's List honors and a Distinguished Scholarship. He is licensed to practice in Illinois and Wisconsin and is admitted to the Federal Bar for the Northern District of Illinois and the Western District of Wisconsin. 


  • Named an Emerging Lawyer by Leading Lawyers (The distinction of being named an “Emerging Lawyer” is reserved for the top 2% of Illinois lawyers who are 40 years old or younger and have been identified by their peers as proving themselves to be professional, ethical and experienced at an early point in their legal career.), 2019-2020
  • Herzog Moot Court Competition, Second Place Finalist, Summer 2011


The John Marshall Law School, J.D., 2013

Bradley University, B.S., Political Science and Economics, 2010


  • Illinois, 2013
  • Wisconsin, 2019
  • U.S. District Court for the Northern District of Illinois, 2015
  • U.S. District Court for the Western District of Wisconsin, 2016