ALEXANDRIA, Va., April 7 -- United States Patent no. 12,597,732, issued on April 7, was assigned to DONGGUAN ZHONGGONG TONGMING OPTOELECTRONICS TECHNOLOGY Co. LTD. (Dongguan, China).

"Quick-connection waterproof and dustproof joint and a quick-connection waterproof and dustproof connecting structure" was invented by Fangzheng Zhang (Dongguan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A quick-connection waterproof and dustproof joint and a quick-connection waterproof and dustproof connection structure, comprising a housing (9) and a quick-connection waterproof and dustproof joint. The housing (9) is provided with a through hole (91); the quick-connection waterproof and dustproof joint comprises a r...