ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,495, issued on Nov. 11, was assigned to Kunhou Auto Parts (Guangdong) Co. Ltd. (Yangjiang, China).
"Flow drill screw" was invented by Yongjiu Huo (Yangjiang, China), Huaiwen Liu (Yangjiang, China) and Chuanbing Zhong (Yangjiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A flow drill screw is provided, which includes a head, a threaded section of a rod, and a tip portion; the head is configured to connect with an external tool; the threaded section of the rod is configured for self-tapping a plate; the tip portion is configured to penetrate the plate; the threaded section of the rod and the tip portion are made of different metal materials...