ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,698,829, issued on Aug. 4, was assigned to Mainspring Energy Inc. (Menlo Park, Calif.).
"Anti-friction sealing rings" was invented by Nathaniel Oliver (Menlo Park, Calif.), Matthew Svrcek (Redwood City, Calif.) and Rucha Bedarkar (Mountain View, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods are provided for a sealing element arranged in a ring groove of a piston assembly to seal against the ring groove at a first interface and to seal against a bore of a cylinder, in which the piston assembly is arranged, at a second interface. A feature of the sealing element is arranged at the first interface for reducing friction between th...