ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,985, issued on Nov. 18, was assigned to Ningbo Wanhai Cartridge Technology Co. Ltd. (Ningbo, China).

"Valve core and a pull-out faucet thereof" was invented by Yonghua Ma (Zhejiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a valve core. The valve core comprises a valve housing, a valve handle, a rotor, a driving plate, a movable valve sheet and a fixed valve sheet. The driving plate is disposed on the bottom of the rotor, the movable valve sheet disposed inside the valve housing and below the driving plate; the fixed valve sheet disposed inside the valve housing and located at the bottom of the valve hous...