since this apparently involves the use of the product by your business, that gives the other party a lot of alternatives to serving you in many situations.
what makes you believe that? He would be suing you for the current violation of his patent rights. He has years to file such a suit.His patent runs out in less than 22 months and he will have no premise at all for a suit
A loss does not necessarily mean the patent is invalid. It simply means he did not prove you infringed upon his patent for the claims he presented. He might have additional claims he could argue.I have nothing to lose, really. If they lose they're patent will be invalidated and all his dealers will leave.

