US Patent Issued to Playbrush on July 7 for "Toothbrush system" (British Inventors)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,672,713, issued on July 7, was assigned to Playbrush Ltd (London).

"Toothbrush system" was invented by Tolulope Ogunsina (London), Wiktor Grajkowski (London), Paul Varga (London) and Matthaus Ittner (London).

According to the abstract* released by the U.S. Patent & Trademark Office: "A toothbrush device is disclosed comprising a motion sensor for sensing motion of the device to produce motion data and a signal analysis unit for analysing the motion data to produce brushing data. A light communication module is arranged to transmit the brushing data to an external device using a light source. This can allow the brushing data to be transmitted without the need to provide a radio frequen...