On July 5, 2013, Apotex Corp.filed IPR2013-00428 on U.S. Patent No. 8268299 on Self Preserved Aqueous Pharmaceutical Compositions; IPR2013-00429 on U.S. Patent No. 8323630 on Self Preserved Aqueous Pharmaceutical Compositions; and IPR2013-00430 on U.S. Patent No. 8388941 on Self Preserved Aqueous Pharmaceutical Compositions.