Matthew C. Berntsen
Partner
Matthew (Matt) C. Berntsen is an intellectual property (IP) litigator with extensive experience representing individuals and companies of all sizes, particularly in complex patent disputes.
Experience
1:20-cv-00510, D. Del., Judge Wolson
1:23-cv-00005, D. Del., Judge Wolson
IPR2023-00333, -00334, PTAB
22-2062 , Fed. Cir.
IPR2021-00417, -00418, -00419, PTAB, Judges Galligan, Repko, White
Scramoge Technology Limited v. Volkswagen AG, et al.
2-22-cv-10730, E.D. Mich.
IPR2022-01309, -01354, -01543, -01559, PTAB, Judges Easthom, Kalan, Lee, McNamara, Moore, Wormmeester
337-TA-1267, ITC, Judge Bhattacharyya
NXP USA Inc. v. MediaTek, Inc. et al.
2:21-cv-00318, E.D. Tex., Judge Gilstrap
In the Matter of Certain Semiconductor Devices and Products Containing the Same
Achieved a comprehensive victory for respondent Innoscience, a global leader in gallium nitride (GaN) power devices, in a high-profile patent dispute before the U.S. International Trade Commission (ITC). The ITC’s Final Determination confirms that Innoscience avoided all patent claims asserted by Infineon.
337‑TA‑1414, ITC, Judge Moore
Ad Innovations, LLC v. BMW of North America, LLC
Obtained a swift, cost-effective walk-away in the Southern District of Texas by showing that Ad Innovations’ infringement theory accused a feature not present in the U.S.
3:25-cv-00179, S.D. Tex., Judge Brown
Insights
Articles
How Low Can You Go? Courts Lower Marking Defense Burden, Raising Patent Damages Risks
June 29, 2026
Intellectual Asset Management (IAM)
Professional Recognition
“Matthew Berntsen rounds out the team with a practice centred on patent disputes, representing technology companies in litigation and related contentious proceedings while working closely with prosecution teams to strengthen clients’ broader intellectual property positions.”
News
Award/Ranking
Finnegan Earns Top Rankings in 2026 IAM Patent 1000 Guide; Nearly 60 Attorneys Ranked
May 28, 2026
Intellectual Asset Management (IAM)Press Release
Finnegan Secures Decisive ITC Victory for Innoscience in Final Determination
May 11, 2026
Press Release
April 23, 2026
Press Release
April 20, 2026
Professional Activities
- PTAB Bar Association
(vice-chair, Diversity Committee, 2023-present) - American Intellectual Property Law Association (AIPLA)
- Boston Intellectual Property Law Association (BIPLA)
- Federal Bar Association, Massachusetts Chapter
- Massachusetts LGBTQ Bar Association
- New England Legal Foundation
(member, Massachusetts Advisory Counsel) - The National LGBTQ+ Bar Association
Admissions
- U.S. Patent and Trademark Office
- Massachusetts
- New York
- U.S. District Court, D. Massachusetts
- U.S. District Court, E.D. Michigan
- U.S. District Court, E.D. New York
- U.S. District Court, N.D. New York
- U.S. District Court, S.D. New York
- U.S. District Court, E.D. Texas
- U.S. District Court, N.D. Texas
- U.S. District Court, S.D. Texas
- U.S. District Court, W.D. Texas
- U.S. Court of Appeals, First Circuit
- U.S. Court of Appeals, Federal Circuit
- Supreme Court of the United States
Education
- Boston University School of Law
- J.D., cum laude, 2010
- Bucknell University
- B.S., Computer Science, cum laude with Honors, 2005
Matthew's Practices
- Appeals, Issues, and Legal Strategy
- Appeals from the PTAB
- Federal Circuit and Supreme Court Appeals
- Diligence, Licensing, and Opinions
- Standard Essential Patents (SEPs)
- Global IP Enforcement, Litigation, and Trials
- Arbitration and Other ADR
- Copyright
- Design Rights
- Federal Circuit and Supreme Court Appeals
- ITC Section 337 Investigations and Trials
- Patent Litigation and Trials
- Pretrial Strategies
- Standard Essential Patents (SEPs)
- Trade Secrets
- Patent Office Invalidation Proceedings
- PTAB Invalidation Proceedings: IPR and PGR
- Prosecution and Portfolio Management
- Standard Essential Patents (SEPs)
Matthew's Industries
- AI, Electronics, and Information Technology
- Electrical and Computer Technology
- Electronic Devices and Components
- Web3
- Chemicals, Industrials, and Materials
- Manufacturing
- Textiles
- Communications
- Financial Services and Business Systems
- Internet of Things (IoT)
- Media
- Consumer Goods and Services
- Consumer Products
- Hospitality, Gaming, and Leisure
- Gaming
- Sports, Fitness, and Outdoor Recreation
- Life Sciences
- Digital Health
- Medical Device and Diagnostics
- Pharmaceutical
- Transportation and Logistics
- Automotive and Smart Mobility Tech