Aura Systems Inc. (OTC:AURA - news) announced that the U.S Patent office has allowed a second patent for its AuraGen mobile power generation system. This additional patent will enhance the Company's position by providing patent coverage not only for the basic AuraGen machine but also to the integrated control system for the vehicle power generating system. The patent covers the controller that converts the variable frequency and amplitude input power electrical energy into constant frequency and constant voltage electrical output power irrespective of the operational speed of the vehicle.