ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,708,638, issued on Aug. 18, was assigned to Sapreme Technologies B.V. (Bilthoven, Netherlands).

"Semicarbazone-based saponin conjugate" was invented by Guy Hermans (Bilthoven, Netherlands), Ruben Postel (Bilthoven, Netherlands), Helmus Van De Langemheen (Putten, Netherlands) and Mazdak Asadian Birjand (Berlin).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a saponin derivative based on a saponin comprising a triterpene aglycone and at least one of a first saccharide chain and a second saccharide chain linked to the aglycone core structure, wherein the saponin derivative comprises an aglycone core structure comprising an aldehyde ...