LAWYER PROFILE
Carolyn Passen

Carolyn Passen

USA 2026

Chambers ranking badge
Chambers ranking badge

Ranked in 1 practice area

About

Provided by Katten

Practice Areas

Carolyn Passen focuses her practice on intellectual property litigation and counseling, with an emphasis on trademarks, copyrights and trade secrets. She also litigates claims involving false advertising, unfair competition and defamation.

Carolyn regularly advises clients on how to best protect and defend their intellectual property and avoid infringement disputes. Her clients include Fortune 100 companies and other well-known brands in the fashion, technology, pharmaceutical and hospitality industries. She also defends major media corporations against claims of defamation stemming from statements made during public broadcasts or in the press.

Clients value Carolyn's judgment and practical approach to trademark clearance, prosecution, risk mitigation and enforcement strategies. She has represented clients in federal district courts and appellate courts throughout the country, as well as before the Trademark Trial and Appeal Board and US International Trade Commission. Many of her cases have been cited as precedent and discussed in professional journals due to the high profile and cutting-edge nature of the litigation involved. In addition, Carolyn often negotiates highly sensitive and confidential trademark acquisitions on behalf of clients.

Professional Memberships

Illinois State Bar Association

Personal

DePaul University College of Law, JD, cum laude

Miami University, BA, cum laude

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Intellectual Property: Trademark, Copyright & Trade Secrets - Illinois

Band 4
Band 4

Individual Editorial

Carolyn Passen is counsel at the firm and regularly handles complex trademark and copyright disputes on behalf of well-known clients.

Strengths

Provided by Chambers

  • Carolyn is competent, diligent and dedicated.

    Intellectual Property: Trademark, Copyright & Trade SecretsChambers Guide to the USA
  • Carolyn is a fantastic lawyer and asset on any case. She is strategic, persistent and very aware of client needs.

    Intellectual Property: Trademark, Copyright & Trade SecretsChambers Guide to the USA

Ranked Individuals at Katten (116)

California

District of Columbia

Illinois

What success is built on

Chambers is the leading data and intelligence partner for the legal sector.

Explore thought leadership