Jones Day advises global and emerging pharma, tech, and medical device companies on IP portfolio strategy, enforcement, and related disputes. The firm regularly assists clients with managing and protecting IP portfolios as well as handling litigation involving life sciences technologies. Anthony Insogna, chair of the firm’s global IP practice and working from San Diego, advises pharmaceutical and biotech companies, investors, and private equity firms on portfolio strategy, patent enforcement and defence, and due diligence relating to therapeutic products. In Chicago, Heather O’Shea, co-leader of the healthcare and life sciences practice group, represents companies in federal and state government enforcement actions as well as regulatory and compliance matters. Alexis Gilroy, also co-leader of the healthcare practice and based in Washington, DC, focuses on digital health and advises on transactional and regulatory issues involving telemedicine, telehealth, and mobile health technologies. The firm boosted its practice with the March 2025 hires of Silicon Valley-based Edward Reines, who leads complex competitor disputes in the life sciences and tech industries, and San Francisco-based Derek Walter, who handles litigation involving genomics science, from Weil, Gotshal & Manges LLP.
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Accolades

Client satisfaction: Lawyer & team quality
Client satisfaction: Sector knowledge

Testimonials

Collated independently by Legal 500 research team.

  • ‘The Jones Day team knows the law and industry. We don't have to pay them to learn the law; they already know it. That makes their responses quicker and less expensive than their contemporaries. It is not unusual to have a response to a complex question within a day.’

  • ‘Tom Briggs treats my client as his most important even though I know I am not. He responds almost immediately, and I have never had to wait for anything. We've dealt with tough adversaries, and Tom handles them calmly and in such a way that the right answer always results.

  • 'Colleen Heisey knows the law and regulations. She knows how to get me the best result while minimizing regulatory risk.’
  • ‘There is deep expertise in the Life Sciences patent prosecution team that can handle a large docket and complex technologies. Their office in Europe streamlines European patent filings and responses that can focus on issues to address EP patent law.’

  • ‘The Life Sciences patent prosecution team, particularly Tammy Weisser and Jocelyn Yu, are responsive and understand complex technologies and the business needs.’

  • ‘The team at Jones Day is very strong and very collaborative. They know the material very well and are always very helpful and value added in their services.’

Lawyers

Leading partners

The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Next Generation Partners

Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Practice head

Alexis S. Gilroy; Heather M. O'Shea; Anthony M. Insogna

Other key lawyers

Edward R. Reines; Derek C. Walter; Tom Briggs; Colleen Heisey; Tammy Weisser; Jocelyn Yu