Overview
As a US lawyer and English solicitor, Charles (Chuck) Larsen provides clients sophisticated multijurisdictional counsel in intellectual property portfolio strategy, transactions and disputes, with a particular emphasis in bioengineering and the medical technology space. He is licensed to practice before the US Patent and Trademark Office (USPTO), the European Patent Office (EPO), and the courts of England and Wales.
Chuck actively counsels on transatlantic disputes, including US District Court cases, Patent Trial and Appeal Board (PTAB) proceedings, Reexaminations, EPO Oppositions and litigation. His team is one of the first international practices to bring an action in Europe’s Unified Patent Court.
Chuck also has extensive experience in transactional IP matters, including transaction structuring and portfolio due diligence for investments and acquisitions, and negotiating collaboration license agreements, joint ventures and other strategic commercial contracts involving key IP assets.
Chuck has advised on a wide range of technology in engineering and life sciences, including bioengineering and medical technology, pharmaceuticals, microfluidics, drug delivery, machine learning, signal processing, combustion and energy. In the medical technology sector, his experience has involved a wide range of technologies, including intravascular devices, respiratory systems, orthopedic implants, cellular therapy, tissue engineering, neuromonitoring, spine technology, electrical stimulation, healthcare informatics, DNA sequencing, software driven devices, biological manufacturing and diagnostics.
Results
- Represented a global medical diagnostics company in structuring its IP portfolio for assertion in US litigation*
- Represented a US medical technology company in European and US patent office disputes and litigation, and in strategic portfolio development to protect a cutting-edge cardiovascular technology*
- Represented a US media company in defending its patent estate in numerous European opposition proceedings and in European litigation*
- Represented a US pain management company in defending core patent against inter partes review at the PTAB and EPO oppositions*
- Represented a US drug delivery device manufacturer in challenging an estate of competitor patents through inter partes review proceedings at the PTAB*
- Represented a US medical device manufacturer in building and positioning its IP for enforcement in the respiratory care space*
- Represented a US hardware company as patent proprietor in an opposition before the EPO, successfully defending the patent*
- Represented a US medical device manufacturer in a 2011 reexamination proceeding before the US Patent Office, successfully securing affirmation of patents simultaneously being litigated in US Federal Court*
- Represented a US medical device manufacturer in defending a European patent in the EPO Opposition Division and before the EPO Board of Appeals*
- Represented a US medical instrumentation company in a 2013 EPO opposition of a patent held by a major competitor*
- Represented a US-based consumer goods company in developing and implementing a global patent, trademark and technology licensing program to monetize its intellectual property assets*
- Represented a US-based hospital in a national licensing campaign to enforce core technology for medical diagnostics*
- Represented an emerging medical diagnostics company in international patent and freedom to operate strategies*
- Represented a global medical device company in its acquisition of an extremity orthopedic company*
- Represented a global private investment firm and a global blood technology company in connection with the sale to a European healthcare company*
- Represented a global private investment firm in its acquisition of a medical diagnostics company*
- Represented a global private investment firm and a medical diagnostics company in connection with the acquisition of the transplants diagnostics business of a medical products company*
- Represented a personal care products company in its acquisition of an oral care products company*
*Matter handled prior to joining McDermott.
Recognitions
- Best Lawyers in America, Patent Law, 2024-2025
- Intellectual Asset Management (IAM) Strategy 300, Global Leaders Guide, 2024
- Intellectual Asset Management (IAM) Strategy 300, The World’s Leading IP Strategists, 2023
- Intellectual Asset Management (IAM) Patent 1000 – The World’s Leading Patent Practitioners, 2024
- Managing Intellectual Property, Patent Star, 2023-2024
Credentials
Education
Johns Hopkins University, Whiting School of Engineering, MS, Applied Biomedical Engineering, 2023
Duke University School of Law, JD, 2001
Brigham Young University, MA, English Rhetoric and Composition, 1998
Brigham Young University, BA, Chemical Engineering, 1996
Admissions
Massachusetts
England and Wales
Courts/Agencies
US Patent and Trademark Office
US District Court for the District of Massachusetts
European Patent Office