US Patent Issued to Sensitronics on May 27 for "Low drift force sensor with capacitive capability" (Washington Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,478, issued on May 27, was assigned to Sensitronics LLC (Bow, Wash.).

"Low drift force sensor with capacitive capability" was invented by Franklin N. Eventoff (Bow, Wash.), James Aaron Holmes (Anacortes, Wash.) and Christopher Ray Wittmier (Everett, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Low drift force sensing conductors include small conductive balls in the ink used to create the conductor. The use of conductive balls reduces sensor drift while avoiding unwanted side-effects like temperature sensitivity. The conductive balls are made of sized synthetic graphite, a derivative of petroleum pitch or coal tar or any other suitable substa...