ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,083, issued on Feb. 3.
"Combined filter element mechanism" was invented by Yanyan Zhang (Cixi, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure claims a combined filter element mechanism, which is applied to a shower head or a faucet and comprises a housing with a hollow cavity; a cover plate detachably arranged on the housing; and a plurality of sub-filter boxes sequentially arranged in a cavity enclosed by the housing and the cover plate. Each sub-filter box is respectively provided with a filter material, and the filter materials in the plurality of sub-filter boxes are the same or different. The present disclosure facil...