ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,432, issued on Feb. 24, was assigned to CIS BIOPHARMA AG (Bubendorf, Switzerland).

"Biocompatible polymeric drug carriers for delivering active agents" was invented by Christian Geraths (Rheinfelden, Germany), Christophe Thommen (Steinbrunn-le-Bas, France), Michael Hackebeil (Gorwihl, Germany), Davide Panighetti (Munchenstein, Switzerland) and Hans Hitz (Arisdorf, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to the delivery of multiple copies of a payload molecule such as an active agent or a chelating agent capable of capturing an active agent, using as a carrier for their delivery a biocompatible copoly...