Natalie D. Lieber

Lieber Natalie

Natalie Lieber focuses on complex patent litigation in a wide variety of technologies and contested proceedings before the United States Patent and Trademark Office (USPTO), including inter partes review (IPR). Natalie’s litigation work has involved such technologies as small-molecule pharmaceuticals, formulations, smartphones, network security appliances, mobile DTV transmitters, quality of service monitoring for wireless networks, filters for semiconductor applications, and marine electronics. She has been a member of trial teams in federal courts across the country, and before the International Trade Commission (ITC).


Representative Clients

  • Entegris
  • Gilead
  • Johnson Outdoors
  • Rhode & Schwarz
  • Sanofi




  • J.D. cum laude Benjamin N. Cardozo School of Law 2008
  • Editorial board member, Moot Court Honor Society
  • B.E. Chemical Engineering The Cooper Union for the Advancement of Science and Art 2005

Bar Admissions

  • New York

Court Admissions

  • U.S. District Court for the Southern District of New York
  • U.S. District Court for the Eastern District of New York


  • Legal 500, Patent Litigation – Full Coverage, 2018
  • Super Lawyers, Rising Stars, Intellectual Property Litigation, New York Metro, 2015 – 2017, 2019