Sustained release formulations
October 6, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesControlled release tablet Sustained release pharmaceutical compositions Prolonged release therapeutic compositions based on hydroxypropylmethylcellulose Sustained release therapeutic compositions based on high molecular weight hydroxypropylmethylcellulose Constant release rate solid oral dosage formulations of veropamil Controlled release formulation and method Constant order release, solid dosage indomethacin formulation and method of treating arthritis and other inflammatory conditions Aspirin tablet Controlled release formulation Controlled release formulation Patent #: 4792452 InventorsApplicationNo. 06/915482 filed on 10/06/1986US Classes:424/480, Cellulose or derivative424/468, Sustained or differential release type424/469, Discrete particles in supporting matrix424/470Where particles are granulatedExaminersPrimary: Rose, Shep K.Attorney, Agent or FirmInternational ClassesA61K 9/20 (20060101)A61K 31/195 (20060101) A61K 31/185 (20060101) A61K 31/21 (20060101) A61K 31/245 (20060101) AbstractA new drug delivery system, which gives sustained release properties is made by combining certain cellulosic polymers with cellulose in a binder system. | |
