Masimo Corporation et al v. Apple Inc.

  1. December 22, 2025

    Apple Seeks To Overturn $634M Masimo Patent Verdict

    Apple has urged a California federal judge to grant its combined motion for judgment or a new trial for its $634 million trial loss over a Masimo patient monitor patent, arguing that no reasonable jury could have reached the verdict and that the tech giant was "severely prejudiced" by erroneous court rulings.

  2. December 19, 2025

    The Top Patent Damages Of 2025

    The largest patent verdict of the year was Apple's $634 million loss against Masimo, and juries issued eight other nine-figure verdicts in 2025 — many of which were against Samsung.

  3. November 14, 2025

    Apple Hit By $634M Verdict Over Masimo Health Tech Patent

    A California federal jury on Friday awarded Masimo Corp. more than $634 million from Apple Inc. following an eight-day trial, finding that certain Apple Watches infringed one of Masimo's pulse oximetry patents with a feature that warns users if they have an abnormal heart rate. 

  4. November 05, 2025

    Masimo Tells Jury It's Owed $749M In Apple Watch IP Fight

    An attorney for Masimo Corp. told a California federal jury during opening statements Wednesday that Apple Inc.'s smartwatch uses his client's groundbreaking patent in the device's feature that warns about an abnormal heart rate, and that Apple should pay up to $749 million for the infringement.

  5. October 28, 2025

    Apple Spared From Some Masimo Patent Claims Before Trial

    A California federal judge issued a mixed ruling in Masimo's case claiming Apple infringed its patents covering pulse oximetry technology for smartwatches, dismissing certain infringement theories but preserving other parts of the case for next week's trial.

  6. February 03, 2025

    Apple Seeks Bench Trial Win In Masimo's Trade Secret Suit

    Apple Inc. urged a California federal judge Monday to issue a bench trial ruling that it didn't steal Masimo Corp.'s pulse oximetry technology for its smartwatches, arguing no actual trade secrets were at issue and that it used its own independently developed innovations to create the blockbuster product.

  7. January 10, 2025

    Masimo, Apple Fight Over Watch IP In Post-Bench Trial Briefs

    Masimo and Apple have submitted dueling briefs to a California federal judge following a trade secret retrial over health sensing technology in Apple's smartwatches, with Masimo maintaining Apple poached its employees to steal its intellectual property and Apple contending Masimo failed for years to "back up their spurious claims" of misappropriation.

  8. November 12, 2024

    Masimo Can't Tie Alleged IP Theft To Apple Profits, Expert Says

    An Apple expert witness defended the company Tuesday in a California federal bench trial over Masimo's claim that the tech giant stole pulse oximetry trade secrets for its popular smartwatch, testifying Masimo cannot tie any value to the purported secrets and that Apple's profits can't be attributed to the watch's blood oxygen features.

  9. November 08, 2024

    Apple Didn't Hire Cercacor CTO To Steal Watch IP, Ex-VP Says

    A retired Apple executive defended the tech giant Friday in Masimo's trade secret suit over pulse oximetry technology, testifying in California federal court that Apple didn't hire a Masimo spinoff's chief technology office in order to obtain confidential information for the Apple Watch and never received any such information.

  10. November 07, 2024

    Masimo Spinoff's Ex-CTO Denies Giving Apple Trade Secrets

    Cercacor Laboratories' former chief technology officer testified Thursday that he privately emailed Apple CEO Tim Cook offering to help the tech giant become a top health and wellness device brand, but denied accusations that he gave Apple any of the Masimo spinoff's pulse oximetry trade secrets.