ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,600, issued on April 21, was assigned to PARSONS XTREME GOLF LLC (Scottsdale, Ariz.).

"Golf club heads and methods to manufacture golf club heads" was invented by Daniel C. Kirtley (Scottsdale, Ariz.) and Michael R. Nicolette (Scottsdale, Ariz.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein. In one example, a golf club head includes a hollow body portion having an interior, an upper back wall portion, a lower back wall portion, a ledge portion between the upper back wall portion and the lower back wall portion, at lea...