ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,485,325, issued on Dec. 2, was assigned to Karsten Manufacturing Corp. (Phoenix).

"Multi-component putter" was invented by David A. Higdon (Cave Creek, Ariz.), Jacob T. Clarke (Apex, N.C.), Anthony D. Serrano (Phoenix) and Murphy R. Alexander (Scottsdale, Ariz.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of multi-component putters comprising an upper portion and a lower portion are described herein. The upper portion is formed from a first material having a first density and the lower portion is formed from a second material having a second density. The first density is less than the second density. The upper portion is affixed to the lowe...