ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,144, issued on Sept. 9, was assigned to Vitalbase Inc. (Winooski, Vt.).

"Oxygen capsule as well as preparation method and application thereof" was invented by Yong Yu (Lenox, Mass.) and Mengchun Yu (Lenox, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An oxygen capsule preparation method includes the following steps: performing three-stage separation on deodorized cocoa butter; then mixing negative oxygen ions with deodorized cocoa butter liquid obtained after the three-stage separation; storing ionic oxygen in the deodorized cocoa butter liquid; and finally filling the deodorized cocoa butter liquid treated by the negative oxygen ions into ...