Ranked in 1 Practice Areas
3

Band 3

About

Provided by Jason Sheasby

USA

Practice Areas

Jason Sheasby focuses on complex litigation, patents, trade secrets, antitrust, regulatory compliance and internal investigations. His experience spans industries including biopharmaceuticals, medical devices, semiconductors, telecommunications, electronics, higher education and healthcare.

As co-lead counsel for USAA, Mr. Sheasby recently secured more than $500 million in Eastern District of Texas jury verdicts against Wells Fargo and PNC Bank involving patents for remote deposit technology, including a 2022 $218.45 million verdict against PNC for willfully infringing four USAA patents.

In 2023, he co-led the team that scored a $303.15 million jury verdict for Netlist in a suit against Samsung involving five patents relating to computer memory technology. The jury found willful infringement, and determined Samsung failed to prove any of the patents are invalid. The matter was tried in the Eastern District of Texas.

In another Eastern District of Texas victory, Mr. Sheasby in 2021 secured a $300 million verdict for PanOptis in a suit against Apple, which was one of the largest verdicts on LTE standard-essential patents in history. In an earlier trial, Mr. Sheasby and co-counsel persuaded a jury that Apple infringed claims of the five patents at issue. That jury also determined all asserted claims were valid and that Apple willfully infringed.

Among other recent wins, Mr. Sheasby secured a $59.5 million verdict for DePuy Synthes, a Johnson & Johnson company, following a 2023 trial in the Middle District of Florida. The jury found Veterinary Orthopedic Implants (VOI) and Fidelio Capital AB willfully infringed two DePuy patents involving medical devices for the treatment of canine knee injuries. Mr. Sheasby and co-lead counsel subsequently obtained a permanent injunction barring the defendants from marketing or selling the infringing devices.

Further, Mr. Sheasby co-led the team that scored a $48 million jury verdict for the City of Pomona in a 2021 Central District of California environmental trial relating to the city’s polluted water supply. In 2023, the Ninth Circuit affirmed the jury’s liability verdict, and determined that damages were at least $30 million.

Among defense victories, representing PanOptis, Mr. Sheasby in 2020 persuaded a judge to dismiss with prejudice an antitrust and unfair competition suit brought by Continental Automotive Systems, which involved licensing practices for patents covering cellular technology. The Fifth Circuit affirmed the victory in 2022.

Mr. Sheasby’s many honors include selection to lists including the Daily Journal’s “Top 100” and “Top IP Litigators,” The National Law Journal’s “Winning Litigators,” Law360’s “Trials” and “IP MVPs” and the Los Angeles Business Journal’s “Top Litigators & Trial Attorneys.”

He earned his J.D. cum laude from Harvard Law School, and his B.A. summa cum laude in Philosophy from Pomona College.

Chambers Review

Provided by Chambers

USA

Intellectual Property: Patent Litigation - California
3
Band 3

Jason Sheasby's respected patent litigation practice spans a broad spectrum of sectors, including electronics, pharmaceuticals and medical devices.

Strengths

Provided by Chambers

Discover other Lawyers at
Irell & Manella LLP

Provided by Chambers
Filter by
Band

California

Intellectual Property: Patent Litigation

Morgan Chu
Star Individuals
3
Jason Sheasby
3
Band 3
5
Lisa S Glasser
5
Band 5
Intellectual Property: Trademark, Copyright & Trade Secrets

S
David Nimmer
S
Senior Statespeople
Life Sciences: IP/Patent Litigation

3
Morgan Chu
3
Band 3

USA - Nationwide

Intellectual Property

1
Morgan Chu
1
Band 1
Litigation: Trial Lawyers

1
Morgan Chu
1
Band 1