Calgary-based NeuroSpheres Holdings Ltd has been acquired by Newark CA-based Stem Cells Inc for an undisclosed sum. Neurospheres was created as a spin-out from the Univ of Calgary in 1991 by Drs Samuel Weiss and Brent Reynolds and Innovate Calgary (UTI LP) is a major shareholder. StemCell was previously granted exclusive, world wide rights to NeuroSphere's patent portfolio, which holds intellectual property for the use of neural stem cells in the treatment of spinal cord injury....