ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,286, issued on July 21, was assigned to SOLAR NATION POWERTECH ENTERPRISES COMPANY Ltd. (Guangzhou, China) and DONGGUAN HONGHAI OPTOELECTRONIC TECHNOLOGY Co. LTD (Dongguan, China).

"Integrated lamp base and lamp holder structure comprising the same" was invented by Bo Tan (Guangzhou, China) and Ling Qin (Dongguan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An integrated lamp base without an inner frame and a lamp holder structure are provided. The lamp holder structure includes the integrated lamp base, a T-shaped insulating base, horizontal wires, and vertical wires. The integrated lamp base includes the lamp base body that defines a conn...