ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,068, issued on March 3, was assigned to Shuaikang Li (Zhengzhou, China).
"Trailer coupler lock" was invented by Shuaikang Li (Zhengzhou, China), Yanfeng Li (Zhengzhou, China), Chen Bian (Zhengzhou, China) and Yonghao Wu (Zhengzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A trailer coupler lock includes a lock core frame, a movable lock head, a limiting piece, and a lock cylinder cover. The lock core frame has a connector and a first lock tongue, and a sliding groove is provided in the lock core frame. The movable lock head includes a sliding block and an engagement portion, the sliding block is slidably installed in the sliding groove, ...