ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,339, issued on Nov. 25, was assigned to WONDERLAND SWITZERLAND AG (Steinhausen, Switzerland).

"Alert system for safety seat and safety seat" was invented by Manqun Cheng (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A safety seat with an alert function includes a seat body, a seat belt, and a buckle assembly. The buckle assembly is installed on the seat body in a seesaw structure. The alert system includes a control module, and a position sensor and a buckle sensor which are electrically connected to the control module. The position sensor is on the buckle assembly. The buckle sensor is in a buckle component of the buckle assembly...