TJ

Thomas J. Campbell Jr.

Chicago, IL

Trusted ip attorney serving Chicago.

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Thomas J. Campbell Jr. is an attorney based in Chicago, ILLINOIS. The practice focuses on IP.

Based in
Chicago, ILLINOIS
Experience
attorney
Known for
IP
  • Handles IP matters from Chicago, ILLINOIS.
  • Recognized with Best Lawyers in America — Patent Law (2026).

About Thomas J. Campbell Jr.: Thomas J. Campbell Jr. is an attorney based in Chicago, ILLINOIS. The practice focuses on IP.

Areas of practice

Practice focus

Thomas J. Campbell Jr. represents clients in Chicago, Illinois across the following areas of law. Each area links to other verified attorneys with the same focus.

Biography

About Thomas J. Campbell Jr.

Tom represents clients in patent and trademark prosecution, intellectual property litigation, and post-grant patent challenges before the Patent Trial and Appeal Board (PTAB). Tom has a broad base of experience in various technological and business areas, particularly in pharmaceutical, biotechnology, chemical and medical device inventions. He drafts invalidity opinions, investigates freedom to operate, counsels on strategic portfolio management, and conducts due diligence investigations prior to acquisition or merger.

He has extensive scientific research experience in both industry and academic settings. Tom worked as a pharmacologist in the Advanced Technology Division of Abbott Laboratories to identify safe and efficacious drug candidates. His skill as a researcher was recognized when Abbott honored him with its Global Pharmaceutical Research and Development Award for Leadership. Tom also conducted various chemical and biological research both at the University of Notre Dame and University of Chicago. His chemical research was directed toward organometallic catalysis. His biological research involved investigating the underlying causes of diabetes — including the molecular biology of ion channels and the role genetics plays in beta cell dysfunction. This experience as a scientist enables Tom to effectively communicate with clients and inventors seeking patent protection or counseling.

Tom has published peer-reviewed scientific journal articles, including multiple articles in the Journal of Medicinal Chemistry and the Journal of Cardiovascular Pharmacology. Tom has been published in the National Law Journal and coauthored book chapters in the American Bar Association’s publications ANDA Litigation and Pre-ANDA Litigation. He is also often sought out for commentary and counseling on emerging trends and proposed rules relating to PTAB trials.

He has represented pro bono clients through the DePaul Technology/Intellectual Property Clinic, Equip for Equality and Lawyers for the Creative Arts. He is also a trained mediator and has been certified by the Center for Conflict Resolution in Chicago.

Tom has been listed in the 2016-2020 editions of Illinois Super Lawyers as a Rising Star and every edition of Best Lawyers in America since 2021 for his expertise in Patent Law.

Credentials

Education

  • Johns Hopkins University

    — · 2023

  • DePaul University

    J.D. · 2010

  • University of Notre Dame

    B.S. · 2002

Jurisdictions

Bar admissions

  • Illinois, Illinois S

    ACTIVE

Recognition

Awards & honors

  • Best Lawyers in America — Patent Law

    2026

Locations

Office locations

Main office

225 W. Randolph St., Suite 2800

Chicago, Illinois 60606-1976

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Frequently asked

Common questions

  • What areas of law does Thomas J. Campbell Jr. practice?

    Thomas J. Campbell Jr. focuses on IP.

  • Where is Thomas J. Campbell Jr. located?

    Thomas J. Campbell Jr. primarily serves clients in Chicago, Illinois, with an office at 225 W. Randolph St., Suite 2800.

  • Is Thomas J. Campbell Jr. a verified attorney?

    Thomas J. Campbell Jr.'s profile is listed but has not yet been claimed by the attorney. Verification status is pending.

  • How can I schedule a consultation with Thomas J. Campbell Jr.?

    You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 312-269-8000.