Harrison Gunn is a patent litigator representing clients in complex disputes across the life sciences and technology sectors. His practice spans litigations before state and federal district courts, Federal Circuit appeals, post-grant Patent Trial and Appeal Board (PTAB) proceedings, International Trade Commission (ITC) Section 337 Investigations, and confidential arbitrations. Harrison has particular expertise advising pharmaceutical and electronics companies on high-stakes litigation strategy and multi-forum patent disputes. He is a contributor to the firm’s Big Molecule Watch and an editor of the firm’s PTAB Trial Tracker. In 2024, he completed a six-month rotation as a Special Assistant District Attorney in Middlesex County, where he brought five cases to trial (two jury trials, three bench trials), securing guilty verdicts in both jury trials and all but one bench trial, and argued numerous dispositive and evidentiary motions. Harrison also provides pro bono representation on immigration matters helping unaccompanied children obtain permanent resident status.
REPRESENTATIVE MATTERS
Credentials
Education
JD2020
University of Pennsylvania Law School
BSChemical Engineering2017
Syracuse University
Admissions
Bars
- Massachusetts
Courts
- U.S. District Court for the District of Massachusetts
- U.S. Court of Appeals for the Federal Circuit
Recognition & Awards
- Most Valuable Mentor, Goodwin, Spring/Summer 2025, Fall/Winter 2025
- Treasurer, AIChE Chemical Engineering & the Law Forum, 2026
- Co-Chair, Greater Boston Legal Services Associates Drive, 2026; Goodwin Co-Captain, 2022 – 2026
- Area Director, Fenway Victory Gardens, 2026
PRESENTATIONS
- “Is the Invention a Product or a Process: Product-by-Process Claims in Practice” 2025 AIChE Annual Meeting, Nov. 3, 2025.
- “Overview of Intellectual Property Dispute Forums,” 2026 AIChE Spring Meeting, Apr. 15, 2026.