Apple Faces Demand to Bar Watch From U.S. as Fight Widens

  • Masimo expands legal battle over health feature in Apple Watch
  • Health-care tech company seeks import ban of Apple Watch
Photographer: David Gray/Bloomberg
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Masimo Corp. is expanding its legal fight against Apple Inc., filing a patent-infringement complaint at the U.S. International Trade Commission that seeks to halt imports of the Apple Watch.

Apple’s Series 6 smartwatch infringes five patents for devices that use light transmitted through the body to measure oxygen levels in blood, Masimo said in a filed at the Washington agency. The patented technology is key to Masimo’s core business and Apple is unfairly copying the features, the company said.