A variety of devices could be powered selectively from a single-power source carried on the body via multiple power supply signals at different frequencies, according to the patent abstract.
A cell phone could be powered by this device
it says a variety of devices, so a cell phone should fit in that catagory. 
( z1 possible :ARG1 ( z2 power :ARG0 ( z3 device :mod ( z4 this ) ) :ARG1 ( z5 phone :mod ( z6 cell ) ) ) )