If a post-grant review petition is filed under section 321, the patent owner shall have the right to file a preliminary response to the petition, within a time period set by the Director, that sets forth reasons why no post-grant review should be instituted based upon the failure of the petition to meet any requirement of this chapter.
(Added Pub. L. 112–29, § 6(d), Sept. 16, 2011, 125 Stat. 306.)