ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,237, issued on May 13, was assigned to PARSONS XTREME GOLF LLC (Scottsdale, Ariz.).

"Golf club heads and methods to manufacture golf club heads" was invented by Robert R. Parsons (Scottsdale, Ariz.), Bradley D. Schweigert (Cave Creek, Ariz.) and Michael R. Nicolette (Scottsdale, Ariz.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head includes a body portion with a first interior cavity portion and a second interior cavity portion. A polymer material in the first interior cavity portion has a coefficient of restituti...