ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,238, issued on March 11, was assigned to CGS T&F Co. LTD. (Cheongju-si, South Korea).

"Putting practice device for training of keeping putter face square and controlling putting strength" was invented by Han So Lee (Cheongju-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a putting practice device configured to enable training of keeping a putter face square without checking movement of a golf ball, to enable training of controlling putting strength as well as keeping the putter face square, and to enable training of practicing linear motion of a putter during execution of a putting stroke while an actual golf ball is st...