US Patent Issued to Polyrocks Technology (Hunan) on April 8 for "Christmas LED bulb manufacturing process" (Chinese Inventors)

ALEXANDRIA, Va., April 9 -- United States Patent no. 12,270,516, issued on April 8, was assigned to Polyrocks Technology (Hunan) Co. Ltd. (Chenzhou, China).

"Christmas LED bulb manufacturing process" was invented by Xiangyong Wang (Heshan, China) and Hong Yang (Heshan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A Christmas LED bulb manufacturing process includes: taking a conductive wire: taking a conductive wire with a preset length, the conductive wire being a Dumet wire or a platinum wire; removing impurities: removing foreign matters and impurities on a surface of the conductive wire; welding a chip: welding and fixing a LED chip to the conductive wire after impurity removal; sealing: after the...