Julie L. Langdon

Julie L. Langdon

Senior Counsel


Julie helps clients in a broad range of industries and sectors identify their needs for intellectual property protection, obtain and maintain patent and trademark protection, and enforce their rights through non-litigation and litigation strategies.  She focuses her practice in the areas of litigation, licensing, and counseling, and her primary practice is patent litigation with a concentration in the areas of biotechnology, chemical, and pharmaceutical arts, including Hatch-Waxman issues.  Julie has represented plaintiffs and defendants in all phases of patent litigation, including preliminary injunction proceedings, discovery, and appeals.  

Julie also has extensive experience with patent and trademark portfolio protection and maintenance before the USPTO and international bodies.  She is a registered patent attorney, and prosecutes patents covering the biotechnology, chemical, medical devices, and mechanical arts.   In addition to her legal work at the firm, Julie also serves on the firm’s diversity committee, and is a contributing author to the firm’s IP blog PHOSITA.  Prior to joining Dunlap Codding in 2015, Julie was an associate attorney at Loeb & Loeb LLP.     

In 2006, Julie received her Juris Doctor degree from the DePaul University College of Law.  In 2002, Julie obtained an M.S. in Forensic Science with a concentration in biotechnology from Florida International University in Miami, Florida, and in 1999, Julie obtained her undergraduate degree from the State University of New York at New Paltz in Cellular Biology and Biotechnology.  Julie’s graduate and undergraduate laboratory and coursework covered a wide range of scientific fields. 

Bar Admissions 
  • Illinois
  • New York
  • U.S. District Court, Northern District of Illinois
  • U.S. District Court, Eastern District of Michigan
  • United States Court of Appeals for the Federal Circuit
  • United States Patent and Trademark Office
  • DePaul University College of Law, J.D. 
  • Florida International University, M.S., Forensic Science – Concentration, Biotechnology
  • State University of New York, B.S., Cellular Biology and Biotechnology
  • Top 100 Under 50 Diverse Executive & Emerging Leaders, 2013, Diversity MBA Magazine
  • Illinois Super Lawyers Rising Star 2012, 2013, 2014, 2015, and 2016 for Intellectual Property Litigation
  • Selected by Leading Lawyers as an Emerging Lawyer in Illinois
Media Mentions 
  • Chair, National Membership Committee, Women in Bio
  • Co-Chair, Membership & Committee Development Committee, Chicago Women in IP (ChiWIP)
  • Secretary, Intellectual Property Law Association of Chicago (“IPLAC”) Educational Foundation
  • Barrister Member, The Richard Linn American Inn of Court
  • Member, Hinsdale Junior Woman’s Club, International Affairs Committee
  • Past Executive Committee Member, Chicago Board of Directors, Step Up