ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,966, issued on Dec. 23, was assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit).

"Shaped core for main bearing oil feed groove" was invented by Mark Claywell (Birmingham, Mich.), Bryan K. Pryor (Clarkston, Mich.) and Brian D. Kaminski (Lake Orion, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A number of variations disclosed may include a product which may include a casting having a surface defining a main bearing feed groove and a surface defining at least one oil feed groove, the surface defining the main bearing feed groove and surface defining the at least one oil feed groove intersecting without any sharp corners or edges so that a...