ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,199, issued on Feb. 17, was assigned to Wonderland Switzerland AG (Steinhausen, Switzerland).

"Wheel connecting structure and baby carrier" was invented by Jihua Huang (Steinhausen, Switzerland) and Zhengwen Guo (Steinhausen, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a wheel connecting structure and a baby carrier. The wheel connecting structure includes a fixed base, a rotatable base, a rotating shaft and an anti-swing member. The rotatable base is rotatably connected to the fixed base by the rotating shaft. The anti-swing member has an abutting portion. The anti-swing member is arranged on one of ...