Lipitor exclusivity expire. . The Lipitor patents involved in this agreement are the . . . . . . . . . . . . . . . . . Ranbaxy has said it is entitled to 180 days of marketing exclusivity as a . . for Mylan would let it enter the market in June, when some of the Lipitor patents expire. Appeals Court Upholds Lipitor's Basic Patent With Exclusivity Maintained In U. . 2011; and various process and crystalline form patents, which expire . process and crystalline form patents, which expire in . . M... more