Jessica L. Ellsworth | Washington, D.C. | Hogan Lovells

Jessica L. Ellsworth

Partner Litigation, Arbitration, and Employment

Ellsworth Jessica

Jessica L. Ellsworth
Ellsworth Jessica
  • Overview
  • Experience
  • Credentials
  • Insights and events
quote mark

"An outstanding appellate brief writer and advocate."

Chambers

Jessica Ellsworth co-heads the firm's Supreme Court and appellate practice and has argued over 85 appeals. She has appeared in the U.S. Supreme Court, every federal appeals court, and over a dozen state appellate courts, reflecting her deep experience and keen ability to help clients solve litigation challenges.

A Chambers-ranked lawyer, Jess was named Litigator of the Week twice in connection with Supreme Court wins and Most Innovative Supreme Court Lawyer by the Financial Times. Her clients know her to be unflappable under pressure.  She has obtained reversal of bench and jury trial verdicts and argued key trial court motions when creating an appellate record is crucial. She is nimble across patent and trademark law, class actions, arbitrability, antitrust, statutory interpretation, and jurisdictional issues. Clients around the world look to Jess to navigate U.S.-based litigation at all levels of courts.  

Jess is a leader in administrative law, pursuing and defending against Administrative Procedures Act challenges to agency action, and she has a niche practice in False Claims Act litigation. In these, and her other matters, Jess brings her appellate perspective to developing and managing case strategy to achieve her clients' goals.

Whether seeking cert, defending a trial court win, or aiming to overcome a trial court loss, Jess crafts winning briefs and persuasively argues cases. Her favorite part of an argument is the rebuttal. Working in our Chambers-ranked Appellate practice, Jess's clients and successful appeals span the technology, automotive, pharmaceutical, health, education, and financial services industries.  

Jess clerked for the Honorable Martha Craig Daughtrey (U.S. Court of Appeals for the Sixth Circuit) and the Honorable Rebecca Beach Smith (U.S. District Court for the Eastern District of Virginia). While in law school, Jessica was named Best Oralist by then-U.S. Supreme Court Justice David Souter in the Harvard Law School Ames Moot Court Competition.

quote mark

"An outstanding appellate brief writer and advocate."

Chambers

Representative experience

Achieved unanimous Supreme Court decision in favor of pharmaceutical company client on standing issue. 

Successfully petitioned for certiorari and argued arbitrability appeal in Supreme Court. 

Successfully represented cryptocurrency company on question of stays pending interlocutory arbitrability appeals in the Supreme Court.

 

Successfully represented plaintiffs challenging congressional redistricting plan in the Supreme Court in challenge under Section 2 of the Voting Rights Act. 

Successfully represented a pharmaceutical company in a game-changing personal jurisdiction case in the Supreme Court.

Prevailed in obtaining JMOL after a $105M verdict in a trade secrets case in federal court.

Prevailed in precedential appeal on design patents in the Federal Circuit.

Successfully argued more than a dozen appeals involving the False Claims Act in the Second, Third, Fourth, Fifth, Sixth, Eighth, Ninth, and Eleventh Circuits.

Successfully obtained discretionary interlocutory review in the Ninth Circuit district court rulings on class certification and denial of motion to dismiss.

Successfully petitioned for Rule 23(f) of class certification ruling in Ninth Circuit, resulting in decertification of class.

Obtained reversal of judgment entered after a bench trial in a trade dress dispute based on lack of personal jurisdiction in Tenth Circuit.

Obtained reversal of bench-trial damages award of $40 million in construction delay case in New York Appellate Division. 

 

Obtained summary judgment in an Administrative Procedures Act case involving complex issues of agency delegation and then prevailed on appeal in the D.C. Circuit.

Obtained reversal of the judgment in a multimillion dollar jury verdict in the Delaware Supreme Court based on legal error in the damages analysis.

Prevailed in a challenge to the FDA's denial of orphan drug exclusivity and obtained order directing FDA to grant such exclusivity.

Dedicated a decade to seeking, and ultimately obtaining, a green card for a Kurdish Iraqi asylum seeker.

Credentials

Education
  • J.D., Harvard Law School, 2001
  • B.A., Dartmouth College, magna cum laude, 1998
Bar admissions and qualifications
  • District of Columbia
  • Virginia
Court admissions
  • U.S. Supreme Court
  • U.S. Court of Appeals, Federal Circuit
  • U.S. Court of Appeals, District of Columbia Circuit
  • U.S. Court of Appeals, First Circuit
  • U.S. Court of Appeals, Second Circuit
  • U.S. Court of Appeals, Third Circuit
  • U.S. Court of Appeals, Fourth Circuit
  • U.S. Court of Appeals, Fifth Circuit
  • U.S. Court of Appeals, Sixth Circuit
  • U.S. Court of Appeals, Seventh Circuit
  • U.S. Court of Appeals, Eighth Circuit
  • U.S. Court of Appeals, Ninth Circuit
  • U.S. Court of Appeals, Tenth Circuit
  • U.S. Court of Appeals, Eleventh Circuit
  • U.S. District Court, Eastern District of Virginia

Recognition

Chambers Ranked -- Appellate

Chambers

2024
Most Innovative Supreme Court Lawyer

Financial Times

2023
Litigator of the Week

American Lawyer

2024
Law360 Appellate MVP

MVP

2024
Law 360 Appellate MVP

MVP

2023
Litigator of the Week

American Lawyer

2023
National Law Journal Appellate Hotlist

National Law Journal

2024
National Law Journal Appellate Hotlist

National Law Journal

2023
National Law Journal Appellate Hotlist

National Law Journal

2022
National Law Journal Appellate Hotlist

National Law Journal

2021
Super Lawyers

Thompson Reuters

2020
Dispute Resolution: Product Liability, Mass Tort, and Class Action: Automotive/Transport

Legal 500 US

2016-2019
Dispute Resolution: Appellate

Legal 500 US

2015, 2017-2020
Legal Elite, Appellate Law

Virginia Business magazine

2011-2012, 2014, 2016
Rising Star (Appellate)

Washington, D.C. Super Lawyers

2013-2016