ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,903, issued on Sept. 8, was assigned to Ningbo Zhuokai Child Articles Co. Ltd. (Cixi, China).
"Camping trolley" was invented by Kairong Ye (Cixi, China) and Dongsheng Wang (Cixi, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a camping trolley, including a front trolley frame and a rear trolley frame, an upper folding frame and a lower folding frame which are opposite to each other at top and bottom are connected between two sides of each of the front trolley frame and the rear trolley frame; the upper folding frame includes an upper bending frame connected to the front trolley frame; the lower folding frame con...