ALEXANDRIA, Va., June 19 -- United States Patent no. 12,329,198, issued on June 17, was assigned to CHANGZHOU PATENT ELECTRONIC TECHNOLOGY Co. LTD (Jiangsu, China).
"Liquid injection method of cartridge, cartridge and electronic cigarette" was invented by Weihua Qiu (Jiangsu, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cartridge includes a cartridge housing having a liquid storage cavity, and a sealing member for sealing the liquid storage cavity, and a first electrode and a second electrode mounted on the sealing member. A first blind hole and a second blind hole are respectively disposed on the end face of the sealing member away from the liquid storage cavity. The liquid injection needle pierce...