Sustained release compositions
October 28, 2005. 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 ReferencesDisintegrating agent for tablets Injectable compositions, nanoparticles useful therein, and process of manufacturing same Sustained release pharmaceutical capsules Sustained release tablet formulations Novel sustained release tablet formulations Method and composition for the preparation of controlled long-acting pharmaceuticals Cellulose floc granules and process Prolonged release therapeutic compositions based on hydroxypropylmethylcellulose Sustained release therapeutic compositions based on high molecular weight hydroxypropylmethylcellulose Process for preparing hydroxyalkylcellulose ethers InventorApplicationNo. 06/791675 filed on 10/28/1985US Classes:424/468, Sustained or differential release type424/469, Discrete particles in supporting matrix424/470, Where particles are granulated514/781, Cellulose or derivative514/965Discrete particles in supporting matrixExaminersPrimary: Griffin, Ronald W.International ClassA61K 9/20 (20060101)AbstractThe release of an active composition from a solid tablet can be delayed by employing a fine particle sized hydroxypropyl methylcellulose ether composition.Other References
Field of SearchCellulose or derivative | |
