ALEXANDRIA, Va., June 18 -- United States Patent no. 12,324,958, issued on June 10.
"Grip training system" was invented by Kyle E. Grathwol (Sandusky, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "A grip training system includes a lapel section having a collar section and an attachment section with at least one attachment point for connecting to exercise equipment, and a sleeve section having a closed end and an open end, wherein the closed end of the sleeve section includes at least one attachment point for connecting to exercise equipment, and wherein the sleeve section further has an insert disposed between the closed end and the open end configured to maintain the open end in an open configuration ...