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Masimo v. Apple (C.D. Cal.) patent case

US District Court, Central District of California · 8:20-cv-00048 · filed Jan 9, 2020 · Active

Masimo accused Apple of infringing its pulse oximetry patents and taking trade secrets through hired employees for the Apple Watch.

The case

Plaintiffs
Masimo
Defendants
Apple
Court
US District Court, Central District of California
Docket
8:20-cv-00048
Filed
Jan 9, 2020
Status
ActivePost-trial motions on the $634 million patent verdict under submission.
Outcome
A jury awarded Masimo $634 million in November 2025; a bench ruling found Apple misappropriated two trade secrets.
Amount
$634 million

History

1 dated entry
DateEntry
Jan 9, 2020Filing: Complaint filed: Masimo Corporation v. Apple Inc.
WhenCase
Jul 26, 2027Further Case Management Conference in 10monext dateHendrix v. AppleFurther Case Management ConferenceActiveCopyrightN.D. Cal.
Dec 22, 2025Filed 9mo agofiledAGCM: Apple ATT fineDecidedAntitrustAutorita Garante della Concorrenza e del Mercato (AGCM)EUR 98 million
Oct 22, 2025Filed 11mo agofiledCMA: Apple mobile platform strategic market statusActiveAntitrustUK CMA
Oct 9, 2025Filed 12mo agofiledMartinez-Conde v. AppleActiveCopyrightN.D. Cal.
Aug 25, 2025Filed 13mo agofiledX Corp. and xAI v. Apple and OpenAIActiveAntitrustN.D. Tex.
Aug 12, 2025Filed 13mo agofiledGuardant Health, Inc. v. Tempus AI, Inc.ActivePatentD. Del.
Jun 23, 2025Filed 15mo agofiledTucker v. Apple (Siri AI)ActiveSecuritiesN.D. Cal.
Jun 9, 2025Filed 16mo agofilediyO v. OpenAI (io trademark)ActivePatentN.D. Cal.
Caption and links

Masimo Corporation v. Apple Inc.

Full docket on CourtListener

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