; or (II) are subject to 1 or more disclaimers under section 253 to obviate obviousness-type double patenting of another commonly owned patent. (ii) For purposes of clause (i)(I)— (I) each patent or application that identifies the same patent or application on a disclaimer under section 253 is part of the same Patent Group; and (II) each patent or application that is identified on a disclaimer under section 253 is part of the same Patent Group as the patent or application subject to the disclaimer. . (b) Applicability The amendment made by subsection (a) shall apply with respect to an application submitted under subsection (b)(2) or (j) of section 505 of the Federal Food, Drug, and Cosmetic Act ( 21 U.S.C. 355 ) or section 351(k) of the Public Health Service Act ( 42 U.S.C. 262(k) ) on or after the date of enactment of this Act.