Masimo, the medical technology company whose lawsuit led to the temporary sales pause of the Apple Watch Series 9 and Ultra 2, has sued the US Customs and Border Protection days after Apple released its redesigned blood oxygen monitoring feature. This is just the latest update in the lengthy legal saga between Masimo and Apple, which started when the former sued the iPhonemaker in 2021, accusing it of infringing on several of its light-based blood oxygen monitoring patents. After a court sided with Masimo in 2023, Apple
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