US Patent Issued on July 28 for "Hand grip strengthener and injection molding manufacturing method thereof" (Chinese Inventor)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,331, issued on July 28.

"Hand grip strengthener and injection molding manufacturing method thereof" was invented by Yuansheng Wang (Ruzhou City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hand grip strengthener includes a first operation handle having a first handle body, a second operation handle which is movably coupled to the first operation handle and has a second handle body, wherein the first handle body and the second handle body are injection molded, a strength adjustment assembly is arranged to generate a resistance force to a relative movement between the first operation handle and the second operation handle."

The patent was ...