ROCKVILLE, MD--(MARKET WIRE)--Jul 19, 2006 -- Neuralstem, Inc. announced today the issuance of a certificate of reexamination from the USPTO confirming the validity of one of its core patents, USPTO #5,753,506 “Isolation, propAgation and Directed Differentiation of Stem Cells From Embryonic and Adult Central Nervous System of Mammals,” covering both process and composition of matter claims for it’s proprietary human neural stem cells.
