ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,816, issued on April 22, was assigned to WONDERLAND SWITZERLAND AG (Steinhausen, Switzerland).
"Stroller, stroller frame and folding device thereof" was invented by Xiaolong Yi (Dongguan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A folding device of a stroller includes a folding assembly which is configured to fold the stroller and a safety assembly. The folding assembly includes an operable pull handle. The pull handle is slidably sleeved over a handle frame of the stroller and is movable between a holding position and a release position. The safety assembly is configured to cooperate with the folding assembly, in which the safety assembl...