(a) INFRINGER'S CIVIL ACTION.- (1) POST-GRANT REVIEW BARRED BY CIVIL ACTION.-A post-grant review may not be instituted under this chapter if, before the date on which the petition for such a review is filed, the petitioner or real party in interest filed a civil action challenging the validity of a claim of the patent. (2) STAY OF CIVIL ACTION.-If the petitioner or real party in interest files a civil action challenging the validity of a claim of the patent on or after the date on which the petitioner
(a) When instituting post-grant review, the Board will authorize the review to proceed on all of the challenged claims and on all grounds of unpatentability asserted for each claim. (b) At any time prior to institution of post-grant review, the Board may deny all grounds for unpatentability for all of the challenged claims. Denial of all grounds is a Board decision not to institute post-grant review. (c) Post-grant review shall not be instituted unless the Board decides that the information presented