Not a single statement on their website on IP. Touch screens in general is a patent mine field and it would be interesting to understand how TeslaTouch's product can differentiate or secure themselves
[1] Mallinckrodt, E., A. Hughes, and W. Sleator, Perception by the Skin of Electrically Induced Vibrations. Science, 1953. 118(3062): pp. 277-278. (from the academic paper on TeslaTouch)
That's a good start.