AddyHart P.C.
Rankings
Leading firm in USA 2026
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Ranked Individuals:
Overview
Provided by AddyHart P.C.
Founded by former AmLaw 100 attorneys, AddyHart is a boutique firm handling complex IP litigation and corporate counsel for clients from Fortune 1000 companies to emerging businesses. The firm litigates before U.S. District Courts, the PTAB, the Court of Federal Claims, and the Federal Circuit, with deep experience across software, pharma, automotive, and electronics. Led by Meredith Martin Addy and Robert P. Hart, AddyHart delivers sophisticated, business-focused legal strategy.
Work & experience
Provided by AddyHart P.C.
AddyHart's practice spans patent, trademark, and copyright litigation across U.S. district courts, with particular strength in Hatch-Waxman pharmaceutical disputes, software, semiconductors, avionics, and automotive systems. The firm maintains a prominent Federal Circuit appellate practice, with two former Federal Circuit clerks on the team. They also handle reexamination, IPR & PGR proceedings, and advises growth-stage and mid-market companies on corporate, transactional, and licensing matters.
Notable work
Provided by AddyHart P.C.
Pharmaceutical Patent Litigation
Defeated patents on Restasis®, Latisse®, and Effient® in complex Hatch-Waxman and PTAB proceedings.
Appellate Reversals:
Led 100+ Federal Circuit appeals, securing reversals across hardware, software, chemical, and life sciences matters.
PTAB
Led coordinated PTAB and district court litigation, leveraging IPRs in complex pharmaceutical and technology disputes.
Ranked Offices
Provided by AddyHart P.C.
USA - Head office
Illinois
400 N Michigan Ave. Suite 1200-1 , Chicago, Illinois, USA, 60611, Chicago
Ranked Departments
Ranked Individuals
AddyHart P.C.
Top figures
12
Lawyers
4
Offices
6
Partners
Key people
Industry sectors
Capabilities
Content provided by AddyHart P.C.