As an engineer who is constantly designing in my head, bravo on realizing your design and patenting it. Jack stands are cheaper, do the same thing and you can remove the wheels if needed.I own these lifts, they are outstanding from a safety standpoint & under vehicle workspace access. Highly recommend this product. Not cheap but you do get what you pay for and they are made in the USA.I hope these go into production sometime soon, I would buy a set of 4 asap. Great idea!!