ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,433,307, issued on Oct. 7, was assigned to DSM IP Assets B.V. (Masstricht, Netherlands).
"Method of manufacturing spray-dried powders" was invented by Andre Hunziker (Kaiseraugst, Switzerland), Rene Lang (Kaiseraugst, Switzerland), David Schaffner (Kaiseraugst, Switzerland) and Thomas Zwick (Kaiseraugst, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and industrial scale set-ups for manufacturing spray-dried powders are provided. During the process, a solvent is used. The process is done batchwise such that the emulsification mass ratio is low when removal of the solvent is started. Preferred solvents are isopropyl acetate and ethyl a...