Portrait of Lesley McCall Grossberg

Lesley McCall Grossberg

Partner

Lesley McCall Grossberg leads Ice Miller’s Intellectual Property practice and is an experienced IP litigator, representing clients in patent, copyright, trademark, trade secret, and unfair competition matters in federal district and appellate courts, as well as in proceedings before the Trademark Trial and Appeal Board and Section 337 investigations before the International Trade Commission.

Lesley brings particular strength in patent litigation, advising clients across life sciences, consumer products, food and beverage, manufacturing, and emerging technology industries on infringement, validity, and enforcement matters. She translates complex technical and legal issues into clear, actionable strategies that align litigation posture with business priorities, risk tolerance, and long‑term market positioning.

In addition to her litigation practice, Lesley serves as a trusted adviser on trademark portfolio strategy and global brand management. She works closely with in-house legal and business teams to oversee trademark clearance, prosecution, enforcement, and licensing programs, helping clients build and maintain portfolios that support business growth while managing risk across jurisdictions. Her approach emphasizes proactive counseling, efficient portfolio management, and enforcement strategies that protect brand equity without unnecessary disruption to operations.

Lesley counsels clients on trademark disputes and enforcement actions, guiding them through oppositions, cancellations, and infringement matters with an eye toward practical resolutions and long-term brand strength. She also advises on copyright disputes, domain name enforcement matters, IP licensing, due diligence, and transactional support, ensuring intellectual property assets are properly valued and protected in corporate and commercial transactions.

    Education

    • Tulane University (B.A., cum laude, 2004)
      • Political Science and History
    • University of Richmond (J.D., magna cum laude, 2008)

    Admissions

    • New Jersey
    • United States District Court - District of New Jersey
    • Pennsylvania
    • United States District Court - Eastern District of Pennsylvania
    • United States District Court - Eastern District of Texas
    • United States District Court - Eastern District of Wisconsin
    • Supreme Court of the United States
    • United States Court of Appeals - Third Circuit
    • United States Court of Appeals - Fourth Circuit
    • United States Court of Appeals - Federal Circuit

    Professional Affiliations

    • Philadelphia Intellectual Property Law Association, Past President (2022-2023); President (2021-2022); President-Elect (2020-2021)
    • International Trademark Association Trademark Reporter Committee 
    • Senior Editor, The Trademark Reporter (2020-2026), Staff Editor (2016-2020)
    • Subcommittee Chair, American Bar Association IP Litigation Committee, 2013-2018
    • ChIPs
    • Copyright Society

    Awards & Recognition

    • World Trademark Review (WTR) 1000, 2023-2026
    • Managing Intellectual Property's IP Stars, 2025-2026
    • The Best Lawyers in America®, Litigation – Intellectual Property, 2025-2027
    • World Intellectual Property Review (WIPR) Insights – USA Trademarks Rankings: Recommended – Contentious, 2024
    • IFLR Rising Stars Americas Short List, 2020
    • The Legal 500 USA Tier 3 Ranking in Trademarks: Non-Contentious (Including Prosecution, Portfolio Management and Licensing), 2022
    • IFLR Expert Guide: Rising Stars. 2022
    • The Legal Intelligencer: Lawyer on the Fast Track, 2015

    Community Involvement

    • Adjunct Professor of Law, Temple University, Trademarks and Unfair Competition
    • Guest Lecturer, Art Institute of Philadelphia

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