ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,223, issued on June 30, was assigned to Dongguan Huanhui Technology Co. Ltd. (Dongguan City, China).

"Sealed and waterproof high-power shock-resistant bulb" was invented by Wei Wang (Dongguan City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Some embodiments of the disclosure provide a sealed and waterproof high-power shock-resistant bulb. In some examples, the sealed and waterproof high-power shock-resistant bulb includes a bulb shell and a light-emitting assembly. In other examples, by additionally disposing an expansion capacitor in the bulb, the light-emitting assembly may change the light-emitting power of a light-emitting diode (LED) ...