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Charles (Chuck) Larsen


McDermott, Will & Emery

Charles (Chuck) Larsen is a partner with McDermott, Will & Emery. As a US lawyer and English solicitor, Chuck 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.

Recent Articles by Charles (Chuck) Larsen

Evaluating Europe’s New IP Court: How the UPC is Doing So Far and What’s to Come

On June 1, 2023, the Unified Patent Court (UPC) opened, providing a new venue for patent litigation across all 17 ratifying European Union member states. The court represents a significant shift in patent litigation in the EU, which is poised to impact the global patent strategy of U.S. and multinational companies. Through the European Patent Office (EPO), inventors have long been able to obtain patent protection across most of the EU through a single application. Once the EPO grants a European Patent, inventors have the option of obtaining local patent protection in any member state that they select without the need for further examination or review. However, historically, once the EPO granted a patent, there was no single enforcement or invalidation mechanism, leaving it up to the member states to enforce patent rights.