Eleanor M. Yost

Eleanor M. Yost

Eleanor M. Yost

Eleanor M. Yost, a partner in Goodwin’s Intellectual Property Litigation Group, focuses on protecting and enforcing intellectual property rights in state and federal courts, the U.S. International Trade Commission (ITC) and the United States Patent & Trademark Office (USPTO). She represents clients in a broad range of intellectual property matters, including patent and trademark prosecution, litigation, appeals, opinions, licensing and transactions.

Ms. Yost is an in-demand thought leader on the subject of USPTO Patent Trial and Appeal Board (PTAB) post-grant proceedings, and has been featured on the topic in IPLaw360, AmLaw Daily, Corporate Counsel, Inside Counsel, The Recorder, Intellectual Property Magazine, Bloomberg BNA, Reuters’ IP Westlaw Journal, The Pink Sheet, Managing IP, Lawdragon and elsewhere. She is also the lead author of PTAB Post Grant Proceedings: A Tactical Guide for Practitioners, and represents patent owners and petitioners in reexamination, inter partes review (IPR) and covered business method review (CBMR) proceedings, and related appeals to the Federal Circuit.

In addition to her intellectual property practice, Ms. Yost is chair of Goodwin’s Government Contracts & Disputes Practice, and an author of Government Contracts Compliance: Leading Lawyers on Understanding Enforcement Trends and Updating Compliance Programs. She assists clients navigating government contracts and procurement issues, particularly those involving the Federal Acquisition Regulations (FARs), Defense Federal Acquisition Regulations Supplement (DFARS) and the Bayh-Dole Act, among others. She counsels clients with respect to prime awards, grants (e.g., DARPA), subcontract arrangements, contract interpretation, performance, bid protests and potential claims.

Professional Activities

Ms. Yost is a member of the Post Grant Patent Office Practice Committee of the Intellectual Property Owners Association (IPO). She was the lead author of IPO’s Response to the USTPO’s Request for Comments concerning America Invents Act post-grant proceedings.

She is also a committee chair for the Leadership Advisory Committee of the National Women’s Law Center; a member of the Public Contract Law Section - Intellectual Property Committee of the American Bar Association; and a member of the U.S. Court of Federal Claims Bar Association, the U.S. Court of Appeals for the Federal Circuit Bar Association, the American Intellectual Property Law Association (AIPLA), and the International Trademark Association (INTA).

Professional Experience

During law school, Ms. Yost interned for the Hon. Arthur J. Cooperman of the New York State Supreme Court. Prior to law school, Ms. Yost interned in the Medical Department of Brookhaven National Laboratory, conducting research in neuro-oncology and investigating cellular and molecular mechanisms of radiation sensitivity. She was also a Clinical Research Intern in the Emergency Medicine Department of University Medical Center at Stony Brook, the region's only level one trauma center.


Ms. Yost has been repeatedly recognized as a Washington, D.C. Super Lawyers “Rising Star” by the Washington Lawyer magazine.

Areas of Practice


Selected representations include:


  • CBM2014-0015 and CBM2014-00160, Petition for Covered Business Method Patent Review by J.P. Morgan Chase & Co.
  • IPR2014-01164 and IPR2014-01165, Petition for Inter Partes Review by Square Inc.
  • IPR2014-01527, IPR2014-01528, IPR2014-01530, IPR2014-01531, IPR2014-01532, IPR2014-01533, and IPR2014-01534 Petition for Inter Partes Review by Amazon.com, Inc.
  • IPR2015-00239, IPR2015-00240, IPR2015-00241, IPR2015-00242, IPR2015-00243, and IPR2015-00247, Petition for Inter Partes Review by 2Wire, Inc.
  • IPR2015-00503, Petition for Inter Partes Review by Agila Specialties Inc.
  • IPR2015-00520 and IPR2015-00521, Petition for Inter Partes Review by Unified Patents Inc.
  • IPR2015-00550, Petition for Inter Partes Review by Teva Pharmaceuticals USA, Inc.
  • IPR2015-00715, Petition for Inter Partes Review by Dr. Reddy’s.
  • IPR2015-00643, IPR2015-00644, and IPR2015-00830, Petition for Inter Partes Review by Mylan Pharmaceuticals, Inc.


  • OSRAM, as trial counsel, in suit involving eight LG patents concerning LED technology.  The case settled favorably prior to initial determination. In re Certain Light-Emitting Diodes and Products Containing the Same
  • Complainant against several semiconductor chip packaging companies. In re Certain Semiconductor Chips With Minimized Chip Packages Size and Products Containing Same
  • Complainant against suppliers of Ground Fault Circuit Interrupter (GFCI) technology. In re Certain Ground Fault Circuit Interrupters and Products Containing Same

Patent Infringement

  • Anika in Glycobiosciences, Inc. v. Anika Therapeutics, Inc. (DDC), a multiple-patent case concerning wound treatment products
  • Conair and Rite Aid in Tonytail Company, Inc. v. Conair Corporation, et al., (NDCal), patent and trade dress litigation. Obtained a complete victory on all disputed claim construction issues following Markman hearing
  • Textron Innovations and Bell Helicopter in Tonytail Company, Inc. v. Conair Corporation, et al., (NDCal), cases involving patented helicopter landing gear
  • Patent owner in trial, appellate and contempt proceedings in ePlus Inc. v. Lawson Software, Inc. (EDVa) 
  • Patent owner in NTP, Inc. v. Sprint Nextel Corp. (EDVa) and NTP, Inc. v. AT&T Mobility (EDVa), a suit concerning wireless email technology
  • Patent owner in Personalized Media Communications v. Motorola, Inc., EchoStar Corp., and DISH Network Corp. (EDTX), a suit concerning telecommunications technology
  • JPMorgan Chase in JPMorgan Chase & Co. v. Affiliated Computer Services, Inc. (DDel), a declaratory judgment action involving 10 patents related to financial services and payment processing systems

Trade Secrets and Trademarks

  • Delta Products in SAE Power Inc. v. Avaya Inc. and Delta Products (New Jersey), a trade secret litigation.
  • Celentano Food Products Inc. in Celentano Food Products, Inc. v. Dominick Celentano et al. (DNJ), a successful trademark infringement and trade secret misappropriation action
  • Thomas Aaron Billiards and The Billiard Connection in Douglas Kelly d/b/a Liberty Billiards v. Thomas Aaron Billiards, et al. (DMd), a successful defense of trademark infringement action.



St. John's University School of Law
Stony Brook University



District of Columbia
New York
New Jersey
U.S. Patent and Trademark Office (USPTO)


U.S. Court of Appeals for the Federal Circuit
U.S. District Court for the District of Columbia
U.S. District Court of New Jersey
U.S. District Court for the Northern District of New York
U.S. District Court for the Western District of New York
Get In Touch
Our clients rely on us for world-class advisory services, counsel on complex transactional work and high-stakes litigation. Specializing in matters involving the financial, life sciences, private equity, real estate, and technology industries, we use a collaborative, cross-disciplinary approach to resolve our clients’ most challenging issues. To find out more, please contact us.
Search Other Lawyers