The right to a patent term extension based upon regulatory review is the result of the Drug Price Competition and Patent Term Restoration Act of 1984, Public Law 98-417, 98 Stat. 1585 (codified at 21 U.S.C. 355(b), (j), (l); 35 U.S.C. 156, 271, 282)(Hatch-Waxman Act). Learn more about Patent Term Extension for Delays at other Agencies under 35 U.S.C. 156 in Chapter 2750 of the Manual of Patent Examining Procedure.