To round out my patent finds this evening, it appears that Amarantus has completed a power of attorney transfer for the NuroPro patent from the trustee for the now-defunct Power3 Medical Products to the law firm representing them in other patent cases (Wilson, Sonsini, Goodrich, & Rosati - Palo Alto office). This change was finalized on 12/16/14. Interesting that they're still at least expending some time/money on NuroPro... will be interesting to see if anything develops.