ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,507,774, issued on Dec. 30, was assigned to Ningbo Port Zhongdi Luggage Manufacturing Ltd. (Ningbo, China).
"Foldable trolley case" was invented by Weiliang Lin (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a foldable trolley case including a rear part (1), a foldable part (3) and a front part (2), which collectively form a case body, the rear part (1) is provided with a rod (4), the front part (2) is provided with a first cavity (5); in a folded state, the foldable part (3) is folded by the rear part (1) and the front part (2) and is accommodated in the first cavity (5), a top portion (6) is nested in the first cavity (5),...