ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,471,793, issued on Nov. 18, was assigned to Sivantos Pte. Ltd. (Singapore).

"Method for checking a PPG sensor of a hearing apparatus, and hearing apparatus system" was invented by Umut Gokay (Mainz, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for checking a PPG sensor of a hearing apparatus that has a rechargeable battery. A charger has a receiving space for the hearing apparatus and a testing environment for testing the functionality of the PPG sensor. The hearing apparatus is placed in the receiving space and the test environment is used to perform a function test on the PPG sensor."

The patent was filed on Aug. 15, 2022, under Ap...