Julianne has significant experience in intellectual property litigation, including cases involving patents, trademarks, copyrights, and trade secrets. She also has experience enforcing covenants not-to-compete and confidentiality agreements. Clients hire her to protect their intellectual property rights and to defend them against infringement allegations. She works closely with her clients to understand their business needs and aggressively defends her clients’ interests, seeking the most efficient route to resolve litigation in a way that satisfies those needs.

In addition to her leadership role as the Chair of the firm's Medical Devices practice, Julianne is a recognized leader in the legal and business communities:

  • Crain's Chicago Business "Notable Women in Law" (2022)
  • Chicago Daily Law Bulletin and Chicago Lawyer Magazine "Top 50 Women in the Law" (2021)
  • America's Top 100 High Stakes Litigators® (2018)
  • "Leading Lawyer" by Leading Lawyers, a division of Law Bulletin Publishing Company (2018–2022)
  • Coalition of Women's Initiatives in Law Inspiration Award (2017)
  • Illinois Super Lawyers® list (2017–2024)
  • "Life Sciences Stars" in LMG Life Sciences (2018–2022)
  • Litigation Trailblazers and Pioneers list, National Law Journal (2016)
  • The Best Lawyers in America© list, Litigation—Intellectual Property category (2016–2023)
  • “IP Star” in the Managing Intellectual Property IP Stars Survey (2016–2023)
  • “Emerging Lawyer,” Emerging Lawyers Magazine (2015–2017)
  • Illinois Rising Stars® lists (2011–2016)
  • Profiles in Diversity Journal's “Women Worth Watching” honoree (2015)
  • Law Bulletin’s “40 Illinois Attorneys Under Forty To Watch” (2014)
  • “Top Rated Lawyer in Intellectual Property” by American Lawyer Media (ALM) and Martindale-Hubbell (2013)
  • Chicago Bar Association's Alliance for Women's Alta May Hulett Award (2012)
  • Martindale-Hubbell® AV Preeminent Peer Review Rating
  • Fellow of the Litigation Counsel of America

 LMG Life Sciences Star Life Sciences 2019Leading Lawyers - Julianne M. Hartzell  Super Lawyers - Julianne M. Hartzell   LCA Fellow     Best Lawyers Award Badge  40 under 40 lawyers    

   High Stake Litigations - America's Top 100 2018


Representative Experience

  • Secured grant of summary judgment that patent claims were invalid because the patent specification lacked sufficient written description of the claimed invention.
  • Obtained multi-million dollar judgment for trademark and copyright infringement as well as unfair competition and deceptive trade practices from an online retailer selling counterfeit goods.
  • Obtained jury verdict in favor of defendant on more than 100 trademark and copyright infringement claims brought against a manufacturer.
  • Reached early resolution on behalf of medical device company accused of patent infringement.
  • Secured non-infringement jury verdict for photographer after successful trial defense against allegations of copyright infringement.
  • Won a multi-million dollar settlement from the world’s largest manufacturer of silicone devices used in reconstructive surgery in a patent infringement claim against the inventor of a revolutionary new device.
  • Successfully defended three of the nation’s largest internet retailers, with combined annual revenues in excess of $10 billion, against the alleged infringement of early e-commerce patents for electronic shopping carts and HTTP methods.

Background and Credentials

Julianne brings strong experience as a litigator protecting her clients’ intellectual property rights and defending those accused of infringement. She has been lead counsel in numerous intellectual property disputes, including copyright and trademark jury trials. She is also a registered patent attorney.

Julianne earned her J.D. from The University of Michigan Law School. As a student, she also interned for the Wayne County Prosecutor's Office, where she received valuable courtroom experience.

She obtained her B.S. in mechanical and biomedical engineering from Duke University. As an undergraduate, she interned with Procter & Gamble and Visteon (then a division of Ford Motor Company), and also worked as a research assistant focusing on MRI imaging technology and failure analysis.


  • University of Michigan Law School (J.D.)
  • Duke University (B.S.)
    • Mechanical and Biomedical Engineering

Bar Admissions

  • Illinois
  • U.S. Patent and Trademark Office
  • U.S. Supreme Court
  • U.S. Court of Appeals, Federal Circuit
  • U.S. District Court, Central District of Illinois
  • U.S. District Court, Northern District of Illinois
  • U.S. District Court, Western District of Wisconsin
  • U.S. District Court, Eastern District of Wisconsin

Publications and Presentations

  • Discussion of $20 Million Lawsuit Against Mariah Carey, WGN Radio, June 14, 2022.
  • "Intellectual Property Developments," Chicago Inventors Organization (CIO) Legal Day Conference, March 24, 2022.
  • "PTAB Fireside Chat," Host, IPLAC 2021 Annual IP Symposium: Perspectives from the Judges and Inside Counsel, December 7, 2021. 
  • "Enforcing IP Rights on Amazon and Other Platforms," Co-Panelist, Intellectual Property Owners Association Webinar, December 1, 2021. 
  • "The Firsts – Trailblazing Women in Law & Policy," Host, ChIPs Tenth Annual Global Summit, October 27, 2021. 

See Julianne's additional thought leadership.

Community and Professional Involvement

  • Coalition of Women's Initiatives in Law, President 2011–2012
  • The Richard Linn American Inn of Court, member of Board of Directors 2012–2014
  • Intellectual Property Owners Association (IPO), Vice Chair of Damages and Injunctions Committee, 2021 and member of Committee since 2012; Litigation Committee, 2010–2011
  • International Trademark Association, Design Rights Subcommittee of the Related Rights Committee, 2013–2015
  • ChIPs, Global Summit Content Committee, 2021
  • Adjunct Professor of Law at Chicago Kent College of Law, teaching a course entitled Strategies in Intellectual Property

Julianne also is an active pro bono advocate, serving on the Firm’s Pro Bono Committee and volunteering time with Lawyers for the Creative Arts, Cabrini Green Legal Aid, and Chicago Volunteer Legal Services.

She is also a member of these professional societies:

  • Richard Linn American Inn of Court
  • American Bar Association
  • American Bar Foundation Fellows
  • Chicago Bar Association
  • Illinois State Bar Association
  • Intellectual Property Lawyers Association of Chicago
  • Intellectual Property Owners Association
  • Chicago Women in Intellectual Property (ChiWIP)
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