Surprising though that the first of the patents issued which related to Masimo's watch was U.S. Patents: 6822564 which was only patented in 2003 with a raft of other patents for the watch coming later.
Covered by or for use under one or more of the following U.S. Patents: 6822564, 6850787, 7295866, 7355512, 7373194, 7377899, 7467002, 7471969, 7865222, 7880606, 7988637, 7990382, 8046040, 8185180, 8190223, 8203438, 8265723, 8280473, 8337403, 8353842, 8405608, 8414499, 8457703, 8483787, 8498684, 8532728, 8560032, 8570167, 8626255, 8652060, 8676286, 8718735, 8790268, 8847740, 8892180, 8929964, 8983564, 9084569, 9113832, 9131882, 9131883, 9167995, 9192329, 9307928, 9370326, 9549696, 9636056, 9675286, 9724016, 9724024, 9775570, 9808188, 9814418, 9839381, 9848806, 9861305, 10064562, 10092200, 10098550, 10194847, 10219746, 10433776, 10595747, RE47218, RE47882, 10582886, 10588553, 10588554, 10610138, 10617338, 10624563, 10624564, 10631765, 10687745, 10758166, 10912501, 10912502, 10945648, 10959652, international equivalents, or one or more of the patents referenced at
www.masimo.com/patents Other patents pending.