Apple, Masimo Fight Over Experts as Apple Watch Trial Looms

Masimo Corp. urged a California federal judge to reject Apple Inc.’s bid to reinstate a barred expert’s testimony a week before a trial is set to start over the Apple Watch’s alleged infringing use of patented pulse-oximetry and heart-rate technologies.

Judge James Selna was right to block testimony from Ali Raja, a Harvard Medical School emergency physician whom he found lacks the technical background to interpret the patents at issue, Masimo said in a filing Monday in the US District Court for the Central District of California. Apple had hired Raja to testify about how its smartwatches perform in ...