<<Assuming the MNTA patents holds up and Amphastar has not dodged it, did Amphastar already infringe? My understanding is yes, because they were using the invention to manufacture at the time for commercial intent, regardless of the sales actually happening.>>
Also, did Amphastar not already assert in court that in fact they made sales? I'd have to go back and look at the pleadings, but there was a fair amount of commentary on this board about that assertion, and while Dew and others countered it was bogus, it may be harder for Amphastar to say that.