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Image: Diane E. Ghrist

Diane E. Ghrist

Attorney, Litigation Department

Overview

Diane E. Ghrist is a senior Intellectual Property attorney based in Washington, D.C. She has successfully represented companies in high-stakes litigation across an array of technology sectors, including media, automotive, materials sciences, security software and medical devices. Diane takes a pragmatic approach to litigation that focuses on the business goals of her clients while always keeping an eye towards preparing for trial. 

Diane has a record of success. She has won at trial and summary judgment and has obtained numerous dismissals at the pleading stage. Diane has substantial experience litigating patent infringement and trade secret misappropriation suits in District Courts across the country, before the International Trade Commission (ITC), as well as in arbitration. She has participated in dozens of proceedings before the Patent Trial and Appeal Board (PTAB), successfully representing both petitioners and patent owners. She also specializes in patent infringement suits against the U.S. government before the U.S. Court of Federal Claims (§ 1498). 

Prior to entering private practice, Diane clerked at the U.S. Court of Appeals for the Federal Circuit for the Honorable Jimmie V. Reyna and the U.S. Court of Federal Claims for the Honorable Mary Ellen Coster Williams. 

Education

  • American University Washington College of Law, J.D.
  • Bryn Mawr College, B.A.

Representations

  • Netflix in connection with a multi-patent litigation involving video streaming technology brought by Robocast. The District Court granted summary judgment in favor of Netflix after finding the claims recited unpatentable subject matter. [Robocast v. Netflix (D. Del.)]
  • Universal Alloy Corporation in connection with a trade secret litigation brought by Arconic (formerly Alcoa) involving aluminum extrusion products for airplane wings. Following a three-week trial, successfully obtained a  jury verdict of no misappropriation. [Arconic v. Universal Alloy Corp. (N.D. Ga.)]
  • CoStar and Duolingo in connection with a District Court litigation and two petitions for inter partes review involving font software. Despite patent owner’s attempt to antedate a prior art reference with over 100 exhibits, successfully obtained a final written decision cancelling all claims. [Modern Font Technologies v. CoStar, Duolingo (P.T.A.B.; N.D. Cal.; Fed. Cir.)]
  • Overhead Door in connection with bringing a multi-patent infringement suit against The Chamberlain Group in District Court and before the ITC. After a week-long trial in an enforcement proceeding at the ITC, a favorable settlement was reached. [Overhead Door v. The Chamberlain Group (N.D. Tx.); Certain Moveable Barrier Operating Systems and Components Thereof (ITC)]
  • InfoBionic in connection with seven patent and trade secret misappropriation litigations and arbitrations brought by CardioNet related to heart arrythmia detection devices. After successfully defeating CardioNet’s patent infringement claims on motions to dismiss and summary judgment, which were confirmed on appeal, CardioNet walked-away from its remaining claims days prior to trial. [CardioNet v. InfoBionic (D. Mass.; Fed. Cir.); AAA]
  • Latch in connection with a multi-jurisdictional dispute brought by LET Investor Group in connection with
  • Jaguar Land Rover in connection with bringing a patent litigation involving off-roading technology against the Volkswagen Group. After successfully defending against multiple inter partes review petitions at the institution stage, Jaguar Land Rover obtained favorable claim construction opinions before both the District Court and the International Trade Commission, resulting in a favorable settlement. [Jaguar Land Rover v. Bentley (E.D. Va); Certain Vehicle Control Systems, Vehicles Containing the Same, and Components Thereof (ITC); (P.T.A.B.)]
  • Saint-Gobain and CertainTeed Gypsum in connection with multiple patent infringement suits brought by Pacific Coast Building Products in connection with sound-attenuating drywall. Following claim construction, the District Court judge issued an order finding the asserted claims invalid as indefinite, which was upheld on appeal. [Pacific Coast Building Products Co. v. CertainTeed Gypsum, Inc. (N.D. Cal.; W.D. Ark.; Fed. Cir.)]
  • Mimecast in connection with a multi-patent litigation brought by Zapfraud. Successfully obtained dismissal after a finding that the patents recited unpatentable subject matter. [ZapFraud v. Mimecast, (D. Del.)]

Matters may have been handled prior to joining Paul Hastings.

Practice Areas

Intellectual Property

Patent Litigation

Trade Secrets


Languages

English


Admissions

District of Columbia Bar

California Bar


Education

American University Washington College of Law, J.D. 2014

Bryn Mawr College, B.A. 2007