Charles Larsen | White & Case LLP International Law Firm, Global Law Practice

Charles Larsen

Partner, Boston, London

T +1 617 979 9336

T +44 20 7532 2502

E [email protected]

As a US patent attorney and English solicitor, Chuck Larsen provides clients insightful and multijurisdictional counsel in intellectual property portfolio strategy, transactions and disputes, with particular experience in the medical technology space.


Charles (Chuck) Larsen is an Intellectual Property partner based in the Firm's Boston office, with a dual practice in London. He concentrates his practice on providing strategic patent advocacy and is licensed to practice before the US Patent and Trademark Office (USPTO), the European Patent Office (EPO), U.S. district court, and the UK High Court.

His patent practice includes a wide range of strategic areas, including patent portfolio development, particularly in international settings; multijurisdictional disputes; conducting patent validity; infringement and freedom to operate studies; and IP due diligence in the US and Europe. He advises clients in inter partes review, European oppositions, other post-grant proceedings, and U.S. and European litigation strategies. He has served as counsel of record in 23 Patent Trial and Appeal Board (PTAB) proceedings and reexaminations and in numerous EPO oppositions.

With a unique trans-Atlantic approach to patent disputes in the U.S. and Europe, Chuck also is a leading voice in the U.S. on preparing U.S. Companies for Europe's Unified Patent Court (UPC).

Chuck's practice also includes portfolio due diligence for equity investments and acquisitions, working with clients to structure their transactions to address the intellectual property risks involved. A significant part of his practice involves advising clients on developing and positioning strategic patent portfolios for licensing and litigation.

Chuck has advised on a wide range of engineering and life sciences applications, including medical technologies, chemistry and pharmaceuticals, drug delivery systems, consumer electronics and signal processing, combustion and energy technology, fluid mechanics, manufacturing processes, software and hardware. In the medical technology sector, his experience includes a number of areas, including implantable heart pumps, respiratory systems, orthopedics, neuromonitoring, spine technology, electrical stimulation, vascular technology, healthcare informatics, biological manufacturing and diagnostics.

Additionally, Chuck provides counsel to clients outside of the life sciences sector in industries such as the consumer products, finance, media and technology industries.

Prior to joining White & Case, Chuck was a partner at an international law firm.

Bars and Courts

  • Massachusetts State Bar
  • Solicitor, England and Wales
  • US Patent and Trademark Office
  • US District Court for the District of Massachusetts


  • JD, Duke University School of Law
  • MA, Brigham Young University
  • BS, Brigham Young University


  • English


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 a core patent against inter partes review at the PTAB.*

Represented a US consumer electronic and drug delivery device manufacturer in challenging an estate of competitor patents through inter partes review proceedings at the PTAB.*

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 men's personal care products company in its acquisition of an oral care products company.*

Represented numerous US technology companies in developing their international IP portfolios.*

Represented numerous private equity and venture capital investors in IP due diligence performance.*

*Matters prior to joining White & Case.

Speaking Engagements

"European Patent Prayers Answered?" American Bar Association Section of Intellectual Property Law 31st Annual Intellectual Property Law Conference, Bethesda, Maryland, April 2016

"European Patent/Unification Update," National CLE Conference Intellectual Property Program, Vail, Colorado, January 2016

"The Impact of the Unified Patent Court on US Companies," Association of Corporate Counsel Patent Committee Program, Palo Alto, California, November 2015

"Europe's Unitary Patent System: What's Next for US Medical Device Companies?" BAIMA Luncheon Seminar, Palo Alto, California, March 2013

"5 Deal Killers: IP Due Diligence in Technology Company M&A Transactions," American Intellectual Property Law Association Mid-Winter Institute, Orlando, Florida, February 2011

"Securing Patent Rights in Europe," Medical Device Manufacturers Association, Webinar, June 2009

"Beyond Business Methods: Assessing the Impact of Bilski on Life Sciences Inventions," Boston Bar Association Life Sciences Committee, Boston, Massachusetts, January 2009


  • Co-author, "European Patent Practice for U.S. Attorneys," Bloomberg BNA, 2015
  • Co-author, "Exploring the Differences Between Post-Grant Proceedings in the U.S. and the EU," Bloomberg BNA's Patent, Trademark & Copyright Journal, March 2015
  • Co-author, "UPC recap: have you been paying attention?," Intellectual Property Magazine, February 2015
  • Co-author, "United States," Patent Transactions in the Life Sciences, October 2014
  • Co-author, "On the verge of the UPC," Intellectual Property Magazine, March 2013