ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,335, issued on April 21, was assigned to Zhejiang Lvshang Optoelectronics Technology Co. Ltd (Zhejiang, China).
"Power supply for light string" was invented by Zhiyong Wei (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a light string power supply, which includes a battery barrel with an open end and a detachable barrel cover. Inside are a circuit board, rechargeable battery, conducting plate, and metal spring. When assembled, the battery's anode connects to the circuit board's positive input terminal, while the cathode connects to the negative input terminal via the metal spring and conducting plat...