Patent 11767293 was granted and assigned to Sunovion (company) on September, 2023 by the United States Patent and Trademark Office.
The various aspects present inventions provide various crystalline forms of (S)-(−)-amisulpride, (R)-(+)-amisulpride, and solvates thereof and methods of making same. In various aspects, the inventions also provide methods of resolving racemic amisulpride.