My suspicion is that this will never be workable with a consumer product like a laptop. Maybe they can use it to power things like lunar rovers, etc., but if you can use the sun anyway, I'm not sure what the advantage is.
Some folks, not all, mind you, are probably not gonna be happy about setting their laptop on their lap and having this gizmo focusing microwaves in that direction!!!
All hell breaks loose when such electric fields start ruining sensitive equipment like HDD actuators and digital cameras, and any circuit with a wayward coil of wire to get energised ruinously by induced currents!