Surface modified drug nanoparticles
Patent 5145684 Issued on September 8, 1992. Estimated Expiration Date: 
January 25, 2011. 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.
January 25, 2011. 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 References 2671750 Injectable compositions, nanoparticles useful therein, and process of manufacturing same Process for the preparation of activated pharmaceutical compositions Method for making uniformly sized particles from water-insoluble organic compounds Biocidal fine powder and a suspension containing the same Patent #: 4851421 InventorsAssigneeApplicationNo. 647105 filed on 01/25/1991US Classes:424/489, Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)424/495, Ethyl cellulose424/499Contains proteins or derivative or polysaccharides or derivativeExaminersPrimary: Page, Thurman K.Assistant: Benston, William E. Jr. Attorney, Agent or FirmForeign Patent References
International ClassA61K 009/14AbstractDispersible particles consisting essentially of a crystalline drug substance having a surface modifier adsorbed on the surface thereof in an amount sufficient to maintain an effective average particle size of less than about 400 nm, methods for the preparation of such particles and dispersions containing the particles. Pharmaceutical compositions containing the particles exhibit unexpected bioavailability and are useful in methods of treating mammals.Other References
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