Ronald I. Eisenstein

Ronald I. Eisenstein


Nixon Peabody LLP

Recognized since 2026

Boston, Massachusetts

Practice Areas

Biotechnology and Life Sciences Practice

Patent Law

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Ronald Eisenstein focuses his practice on advising biotechnology and pharmaceutical companies, research institutes, and universities on patent portfolio management, post-issuance strategies, dispute management and due diligence. He is also a member of the firm’s Life Sciences team.

My focusI focus my practice on helping clients devise and execute strategies for managing their patent portfolios as well as navigate the changing patent landscape. I leverage my scientific background, extensive legal experience and business acumen to strategically counsel clients on upcoming legal and business trends. Key areas of concentration for me include: immune modulation including antibodies; gene therapy; cancer vaccines; angiogenesis modulation; personalized medicine, including diagnostics, proteomics, biomarkers, companion diagnostics and related systems; synthetic biology; small molecules; magnetic resonance imaging; and primate lentiviruses. Patent StrategiesI’ve worked with many clients to develop and implement a wide variety of patent strategies including strategic patent procurement, portfolio development, competitive intelligence and analysis, licensing and enforcement of the patents. I also counsel clients on alternative dispute resolution tactics and manage such approaches, especially when the outcome aligns with a company’s business objectives. Patent ProsecutionI focus on prosecution of biotechnology, medical and chemical cases and emphasize strategic management of my clients’ intellectual property portfolios. Post-IssuanceI help clients understand, and effectively use post-issuance procedures such as oppositions, interferences and inter partes reviews-both offensively and defensively. In addition, I provide freedom-to-operate guidance to clients as well as due diligence for acquisitions and financing.

Location
  • Exchange Place
    53 State Street
    Boston, MA 02109-2835
Education
  • Georgetown University, J.D.
  • Cornell University, B.S.
Bar Admissions
  • District of Columbia, The District of Columbia Bar
  • New York, New York State Bar Association
  • Massachusetts, Massachusetts Bar Association
Court Admissions
  • U.S. District Court, Southern District of New York
  • U.S. District Court, Western District of New York
  • U.S. District Court, Northern District of New York
  • U.S. District Court, Eastern District of New York
  • U.S. Patent and Trademark Office
  • U.S. Court of Appeals, Federal Circuit
  • U.S. District Court, District of Massachusetts

Nixon Peabody LLP
Headquarters: Boston, Massachusetts

203 The Best Lawyers in America® awards

82 Best Lawyers: Ones to Watch® in America awards

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Recognized in The Best Lawyers in America® 2026 for work in:
  • Biotechnology and Life Sciences Practice
  • Patent Law

Publications

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