Patent 7855217 was granted and assigned to Celgene on December, 2010 by the United States Patent and Trademark Office.
Polymorphic forms of 3-(4-amino-1-oxo-1,3 dihydro-isoindol-2-yl)-piperidine-2,6-dione are disclosed. Compositions comprising the polymorphic forms, methods of making the polymorphic forms and methods of their use are also disclosed.