ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,050, issued on July 28, was assigned to ENVIONEER Co. LTD (Jecheon-si, South Korea).
"Portable water bottle cap with built-in filter" was invented by Jeong Cheol Han (Suwon-si, South Korea) and Seong Eun Park (Suwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a portable water bottle cap with a built-in filter, and more particularly a portable water bottle cap with a built-in filter, the portable water bottle cap including a cap member removably coupled to an opening of a water bottle, a filter receiving member connected to the cap member at one side thereof, a filter member received in the filter r...