Rita J.Yoon


三藩市 + 1.415.875.5816

Rita Yoon has a proven track record successfully defending the largest tech companies in the world in trial after trial, defeating billions of dollars in damages and injunctions. She focuses her practice on high-stakes IP, patent, and trade secret litigation and International Trade Commission (ITC) investigations. She has represented some of the largest tech and financial institutions in the world, including in the fintech, blockchain, banking, financial services, internet, software, smartphone, semiconductor, wireless communications, streaming media, automotive, and biotech industries. A trusted counselor for clients, Rita is known for her powerful legal strategies concerning emerging technologies, standard essential patents (SEPs), and fair, reasonable, and non-discriminatory (FRAND) terms.

Rita also has significant experience litigating software patents — having represented amicus curiae in the game-changing Supreme Court case, Alice Corp. v. CLS Bank Int'l, 134 S. Ct. 2347 (2014). She is active in all phases of litigation from pre-lawsuit investigations through jury trial and appeal to the Federal Circuit and the United States Supreme Court.

In addition to litigation, Rita counsels clients on patent monetization strategies and enforcement, including blockchain and distributed ledger technologies. Rita also was selected as a secondee attorney to one of the world's largest semiconductor companies.


  • NXP settles global patent dispute with MediaTek over semiconductor technologyJones Day represented NXP Semiconductors N.V. et al. as complainant/plaintiff in a patent infringement dispute against competitor MediaTek Inc. et al. before the International Trade Commission (ITC) and the United States District Court for the Central District of California. 
  • Home Depot wins ITC trial in patent litigation relating to filament LED technologyJones Day successfully defended The Home Depot, Inc. before the International Trade Commission (ITC) against multi-patent litigation asserted by The Regents of the University of California.
  • Cohesity disposes of six-patent litigation brought by adverse competitor CommvaultJones Day successfully represented Cohesity Inc. ("Cohesity") and obtained dismissal in a six-patent, competitor suit filed by Commvault Systems in April 21, 2020.
  • Velodyne defeats trade secret misappropriation claims at ITC and District CourtJones Day successfully defended leading lidar developer Velodyne Lidar USA, Inc. against trade secret misappropriation claims in the International Trade Commission and U.S. District Court for the Northern District of California, resulting in Complainant voluntarily withdrawing its Complaint and terminating the ITC investigation, and dismissing its district court claims with prejudice.
  • Owens Corning successfully defends ITC action involving roofing underlayment productsJones Day represented Owens Corning, Owens Corning Roofing & Asphalt, LLC, and InterWrap Corp. ("Owens Corning") in multi-venue litigation relating to synthetic roof underlayment patents asserted by Kirsch Research & Development, LLC ("Kirsch").
  • The following represents experience acquired prior to joining Jones Day.

    Trial counsel for leading headset manufacturer in a $600 million antitrust action, where jury returned a complete defense verdict in favor of the client after less than a day of deliberations.

    Trial counsel for smartphone manufacturer in successfully defending against a multipatent infringement action, defeating $48 million damages claim following a six-day jury trial.

    Trial counsel for smartphone manufacturer in successfully defending against a multipatent infringement action, where following a two-week jury trial, the jury rendered a complete defense verdict on patent infringement and invalidity.

    Trial counsel for smartphone manufacturer in successfully defending against a multipatent infringement action, where in the third week of trial, plaintiff dismissed the case in its entirety just before closing arguments.

    Trial counsel for leading pharmaceutical company in patent infringement action over heartburn medication, successfully obtaining judgment of noninfringement in favor of client.

    Trial counsel for leading pharmaceutical company in a Hatch-Waxman action over narcolepsy medication, resulting in a favorable settlement for the client.

    Appellate counsel for amicus curiae Intellectual Property Law Association of Chicago urging U.S. Supreme Court to clarify standard for patent eligibility of computer-implemented claims.

    Appellate counsel for leading Wi-Fi network solutions provider in successful appeal to the Federal Circuit, resulting in affirmance of jury verdict of infringement and validity in favor of the client.

    Appellate counsel for leading furniture manufacturer in successful appeal that resulted in affirmance that the case was "exceptional" and merited an award of millions in attorneys' fees.