On February 9, 2012, the U.S. Patent and Trademark Office published a practice guide for trials before the PTAB, which begin on September 16, 2012, with the implementation of Inter Partes Reviews. These guide can be found at Federal Register Volume 77, Number 27: http://www.gpo.gov/fdsys/pkg/FR-2012-02-09/html/2012-2523.htm