ALEXANDRIA, Va., July 14 -- United States Patent no. 12,677,962, issued on July 14, was assigned to ANHUI COOLBABY SCIENCE & TECHNOLOGY DEVELOPMENT Corp. (Lu'an, China).

"Folding bed structure" was invented by Lei Zhang (Lu'an, China) and Zehua Yi (Lu'an, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A folding bed structure includes: a joint connector, where the joint connector is symmetrically provided with two first sliding grooves near an upper part of the joint connector, a distance between the two first sliding grooves gradually increases from top to bottom, and a second sliding groove is provided on each of sides, facing away from each other, of the two first sliding grooves; two upper enclosing...