After spending close to $15, 000 to make my product that should have cost maybe 3 to 4 hundred, Davison Inventegration kept asking me for 330 dollars each time they said they were going to present my product to another company. I have spent close to $20, 000 on them with very little results. After two years of this I asked for my product and they sent a cheap facsimile of my vision. It must have cost them $100 to make it. I am thinking after reading some of the similar stories on here that we should get a class action suit against these... read full review »