ALEXANDRIA, Va., July 7 -- United States Patent no. 12,673,243, issued on July 7, was assigned to BRIDGESTONE SPORTS Co. LTD. (Tokyo).
"Golf club head and method for manufacturing same" was invented by Tomonori Kitagawa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A golf club head includes a first groove formed in a face portion of the head, and a second groove formed in the face portion and intersecting the first groove. A first protrusion is formed along an edge of the first groove. A second protrusion is formed along an edge of the second groove. A third protrusion is formed at an edge of an intersection between the first groove and the second groove, the third protrusion being higher than the fi...