Apple is facing another patent lawsuit, this time from a Michigan-based technology startup that claims the heart rate technology used in the Apple Watch infringes on its patented technology. The startup, Omni MedSci, specializes in near-infrasrer and mid-infrared broadband lasers, and says that it met with Apple from 2014 to 2016 to discuss the use of its technology, but Apple broke off partnership discussions before later introducing technology using…