ALEXANDRIA, Va., May 12 -- United States Patent no. 12,622,413, issued on May 12.
"Pet water filter cartridge" was invented by Changqing Han (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses a pet water filter cartridge, which specifically relates to the field of filtration technology for pet drinking water and aquatic aquaculture water, including a water filter cartridge carrier and a filter material. The water filter cartridge carrier is composed of a non-woven cotton hot pressed base and a non-woven cotton cover, the base is provided with an accommodation chamber. The accommodation chamber is provided with the filter material, the non-woven cotton cover is sealed at ...