ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,980, issued on April 7, was assigned to Wonderland Switzerland AG (Steinhausen, Switzerland).
"Unlock device and stroller" was invented by Leilei Zheng (Dongguan, China), Zheng-Wen Guo (Dongguan, China), Er-Xue Wang (Dongguan, China), Mingxing Sun (Dongguan, China) and Shoufeng Hu (Dongguan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An unlock device includes at least one operating member, a retaining mechanism and at least one unlock module. The at least one operating member is movably disposed on a frame, wherein the frame is equipped with at least one lock mechanism. The retaining mechanism is disposed on the at least one operating memb...