ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,983, issued on May 13, was assigned to Xiamen PVTECH Co. Ltd. (Fujian, China).

"Holder, light tube, lighting device having a mistake-proof structure, installation method and modifying method thereof" was invented by Fuxing Lu (Fujian, China) and Jinsheng Li (Fujian, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for installing a lighting device having a mistake-proof structure includes the following steps: aligning the two end caps at the two ends of the tube body of a light tube with two holders; installing the two end caps on the two holders to make the extending space of each of the end caps be engaged with the extending portion of...