One Marina Park Drive, Suite 1530
Boston, MA 02210
United States


Patent star 2023

Ron Cahill is well-respected for his work with clients of virtually all sizes to solve their most challenging intellectual property problems. A first chair IP trial attorney and Chair of the Barnes & Thornburg national Life Sciences Practice Group, he specializes in breaking down complex life sciences intellectual property issues for juries, judges, and the PTAB. Clients also ask him to present strategic intellectual property options to their management and boards, including whether to launch litigation and how to gain leverage in business, investment, and licensing negotiations.

With decades of courtroom experience, Ron has led trial teams in patent infringement cases around the country. He also conducts inter partes reviews (IPRs) and other proceedings in the U.S. Patent and Trademark Office to determine patent validity. While much of Ron’s work involves presenting his clients’ cases to judges and juries around the country, many clients ask him to apply his experience to strategic planning within their business, especially with respect to their competitors or potential deal partners.

Clients appreciate Ron’s ability to assess complex intellectual property issues in terms they can apply to achieve their business goals. Although opposing counsel recognize Ron’s determined resolve to try cases when necessary, he regularly earns praise for finding the levers that drive settlements so clients can move their businesses forward.

Ron’s life science work covers a wide range of products, technologies, and legal issues, with recent engagements including CAR-T cancer treatments, small molecule enzyme inhibitors, personalized medicine, and genetic engineering of metabolic systems to produce desired outputs. Recent legal issues have included the scope of written description and enablement in the drug discovery context, the obviousness of engineered biologics, infringement based on biochemical function and property limitations, induced infringement of method of treatment claims, and the strategic use of IPRs to avoid litigation.

In addition to his patent work, which spans industries from medical devices to engineered biologics to engineering components, Ron represents clients seeking to protect their brands in areas such as consumer products, business-to-business sales, food and beverage, and restaurants. He also has experience resolving trademark and trade dress disputes in federal courts, as well as in opposition and cancellation proceedings before the Trademark Trial and Appeal Board (TTAB).

A leader in professional associations in his field, Ron has been active in formulating legislative proposals in the areas of attorney fee shifting and patentable subject matter. He also speaks frequently on topics relating to building strategic intellectual property portfolios and using IP to enhance business value, and often has been quoted on IP issues in the business press.


  • University of Pennsylvania Law School, J.D.
  • Cornell University, M.Eng., mechanical engineering
  • Cornell University, B.S., mechanical engineering