Muriel M. Liberto, PhD, Esq.

Member vCard


  • Fordham University (JD, magna cum laude, 2006)
  • Ohio State University (PhD, Biochemistry, 1996)
  • College of William & Mary (BS, Chemistry, 1991)

Bar Admissions

  • New Jersey
  • New York
  • United States Patent and Trademark Office

Muriel works with clients to obtain worldwide patent protection for their intellectual property. She has more than 10 years of experience responding to all aspects of clients’ intellectual property needs, and has drafted and procured patents for a wide variety of technologies in the biotech and pharmaceutical spaces. 

Muriel also focuses on IP-related aspects of corporate transactions, including confidentiality, materials transfer, licensing, and research collaboration agreements. She conducts patentability searches, renders freedom to operate and validity opinions, and participates in post-grant proceedings before the US Patent and Trademark Office on behalf of her clients. Muriel’s current clients are active in areas such as small molecule therapeutics, vaccines, nucleic acid-based therapeutics, lipid-based therapeutics, molecular diagnostics and personalized medicine, drug delivery platforms and formulations, and medical devices such as inhalers and orthopedic surgical materials. Having acted as special assistant to the mediator and arbiter in proceedings conducted under the International Institute for Conflict Prevention and Resolution, Muriel can offer her clients valuable insight into the pros and cons of using alternative dispute resolution to settle patent-related claims. 

In addition, Muriel is deeply committed to pro bono work and serves on the firm’s Pro Bono Committee.  She has a particular interest in helping victims of persecution to obtain asylum in the United States, both through the affirmative application process and via appeals before the US immigration court. Muriel has also assisted nonprofits with diverse matters ranging from drafting incorporation documents to obtaining federal tax-exempt status and negotiating the return of funds lost through a telemarketing scam. 

Prior to joining Mintz Levin, Muriel was a patent attorney at an intellectual property law firm in New York City. Before she became an attorney, she was a patent agent registered to practice before the US Patent and Trademark Office. Earlier Muriel worked in breast cancer research, first in a doctoral program at the Ohio State University College of Pharmacy in Columbus and then as a postdoctoral research assistant in the Columbia University College of Physicians and Surgeons in New York.   In a collaborative research project with members of a computational biology group at Columbia, Muriel participated in developing methods for detecting genetic regulatory elements in DNA sequence data.