On August 14, 2012, the USPTO published its final rules on post-grant procedures for challenging US Patents. If you want to learn more about the rules governing post-grant challenges in the PTO, I suggest starting with this article:
PTO's Final Rules for Post-Grant Challenges Show Little Change From Original Proposals - Bloomberg BNA
Bloomberg BNA published the rules (here), which become effective on September 16, 2012.
Copyright © 2012 Robert Moll. All rights reserved.