ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,403,350, issued on Sept. 2.
"Dumbbell and fitness equipment" was invented by Danni Wang (Ningbo, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a dumbbell, which includes a first grip rod and two counterweight assemblies, each of both ends of the first grip rod defines a first screw hole, each of the two counterweight assemblies comprises at least one first counterweight, the first counterweight comprises a first connection portion, the first connection portion is threadedly received in the first screw hole to connect the first grip rod with the first counterweight. The present disclosure further provides a fitnes...