ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,752,214, issued on Oct. 6, was assigned to Shenzhen Yinermei Technology Co. Ltd. (Shenzhen, China).

"Combined-type smoke generator" was invented by Zhiyi Huang (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A combined-type smoke generator includes a shell. A battery is installed on one side of bottom inside shell, an electrode needle is installed on one side of top inside shell, an air pump is installed on the other side of bottom inside shell, a connecting assembly is installed on the other side of top inside shell, a smoke compartment is installed on the left side of top of shell, an air inlet is installed on the right side of the smok...