< But in no event can a patentee be awarded more in  litigation than what  the original reasonable royalty would have been (plus damages for  "willfulness",>
What is your basis for the above statement?  It is essentially the opposite of what I have read, that being that the court can not award less than a reasonable royalty.
This is from one of many sites that contain such language. 
<A reasonable royalty is the minimum permissible measure of damages set  by the patent laws and is not necessarily the actual measure of damages,  but is merely the floor below which damages should not fall.   Accordingly, you may find damages in excess of a reasonable royalty if  you find that the facts so warrant.>
http://www.modeljuryinstructions.com/tag/reasonable-royalty/
Opty