ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,161, issued on Nov. 18, was assigned to DSM IP ASSETS B.V. (Netherlands).

"Storage stable mixtures, method of improving retention of a compound and use of rice hulls and/or rice bran to enhance retention of a compound" was invented by Dominik Josef Brunner (Kaiseraugst, Switzerland), Laure Clasadonte (Kaiseraugst, Switzerland), Martin Reto Gadient (Kaiseraugst, Switzerland) and Roland Schuepfer (Kaiseraugst, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to improved formulations of propandiol mononitrate and derivatives thereof as well as to the production of such formulations."

The patent was filed on Dec....