ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,672, issued on Dec. 9, was assigned to Caterpillar Inc. (Peoria, Ill.).

"Identifying and counting common rail fuel system pressure relief valve opening events" was invented by Ryan M. Hinrichsen (Groveland, Ill.) and Daniel R. Puckett (Peoria, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one instance, disclosed herein is a common rail fuel system for an engine system including an engine, the common rail fuel system comprising a controller configured to: detect a start of the engine; increment a PRV opening events counter; determine if a low speed condition of the engine was met before the controller turns off based on sensor data received f...