[bluedevil2k]

You need to play hard-ball with them. They really want your signature on the form assigning them the patent once it's filed. Refuse to sign it until you get paid. They don't need your signature, but they're trying to avoid a legal fight in the future, so you have some leverage. I left there 13 years ago and I've gotten paid for 6 patents since I left, one that was even filed 2 years ago, 11 years after I left.