I agree there are electrical components that may not be unusual, except that these switch much faster. No diode I know if will turn on in a half a billionth of a second.The main research they have done is market research to figure out where to market this and which buzzwords to use. The circuit inside would take anyone that knows what they are doing under a day to design including spec'ing parts. I guarantee that if you open it up it is just a combination of GDTs, MOVs, and TVS diodes. If you open up a common surge suppressing power strip, you will see the same stuff.