Method of preparing controlled-release preparations for biologically active materials and resulting compositions
May 19, 2015. 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 ReferencesMethod of enhancing the administration of pharmalogically active agents Bile acid emulsions Method of preparing a controlled-release pharmaceutical preparation, and resulting composition Compositions for rectal use Compositions containing aqueous dispersions of lipid spheres Method of encapsulating biologically active materials in lipid vesicles Method of encapsulating biologically active materials in lipid vesicles Solid formulations containing pheromones and method of using same Magnetically-localizable, biodegradable lipid microspheres Lipid membrane drug delivery InventorsAssigneeApplicationNo. 313543 filed on 09/27/1994US Classes:424/50, Ferment containing (e.g., enzymes, bacteria, etc.)264/4.1, Liquid encapsulation utilizing an emulsion or dispersion to form a solid-walled microcapsule (includes liposome)264/4.3, With treatment subsequent to solid wall formation (e.g., coating, hardening, etc.)264/4.6Solid-walled microcapsule formed by physically removing a constituent (e.g., evaporation, extraction, etc.)ExaminersPrimary: Kishore, Gollamudi S.Attorney, Agent or FirmForeign Patent References
International ClassA61K 009/127Foreign Application Priority Data1982-11-26 SEAbstractA method and product for preparing a controlled-release composition are provided. The method comprises formation of a mixture containing at least one amphiphilic substance capable of forming a liquid crystalline phase, in contact with a liquid selected from the group consisting of water, glycerol, ethylene glycol, propylene glycol and mixtures thereof. The method includes a step of providing in such mixture a bioactive material.Other References
Field of SearchLiquid encapsulation utilizing an emulsion or dispersion to form a solid-walled microcapsule (includes liposome)With treatment subsequent to solid wall formation (e.g., coating, hardening, etc.) Solid-walled microcapsule formed by physically removing a constituent (e.g., evaporation, extraction, etc.) Microcapsule with fluid core (includes liposome) BAITS, ATTRACTANTS, OR LURES (NON-FOOD) Liposomes Containing waxes, higher fatty acids, higher fatty alcohols, or derivatives thereof Contains waxes, higher fatty acids, higher fatty alcohols LIPOSOMES (E.G., ENCAPSULATION, ETC.) Microcapsule-sustained or differential release Discrete particles in supporting matrix | |
