Processes for spray drying aqueous suspensions of hydrophobic drugs and compositions thereof
December 29, 2017. 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 ReferencesSpray-dried vitamin powders using hydrophobic silica Process for the preparation of activated pharmaceutical compositions Inhalation pharmaceuticals Pharmaceutical composition and its rectal use Sustained release oral suspensions Process for spray drying riboflavin to produce a granulate product having low binder content Process for the preparation of an antioxydant extract of spices Inhalation pharmaceuticals Aerosol carriers Process for preparing therapeutic compositions containing nanoparticles InventorAssigneeApplicationNo. 999095 filed on 12/29/1997US Classes:424/46, Powder or dust containing424/45, Organic pressurized fluid424/489, Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)424/499, Contains proteins or derivative or polysaccharides or derivative514/938, Oil-water type514/958FOR SMOKING OR INHALINGExaminersPrimary: Page, Thurman K.Assistant: Channavajjala, Lakshmi Attorney, Agent or FirmForeign Patent References
International ClassA61L 009/14AbstractMethods for preparing dry powders having hydrophobic and hydrophilic components comprise combining solutions or suspensions of the components and spray drying them simultaneously in a spray drier. The hydrophilic component is dissolved in an aqueous solution and the hydrophobic component suspended therein. The method provides dry powders having relatively uniform characteristics.Other References
Field of SearchParticulate form (e.g., powders, granules, beads, microcapsules, and pellets)Contains proteins or derivative or polysaccharides or derivative Contains waxes, higher fatty acids, higher fatty alcohols Organic pressurized fluid Powder or dust containing Oil-water type FOR SMOKING OR INHALING Isoalloxazine (e.g., riboflavins, Vitamin B2, etc.) FORMATION OF SOLID PARTICULATE MATERIAL DIRECTLY FROM MOLTEN OR LIQUID MASS (E.G., LIQUID COMMINUTING) Coated particles By impinging or atomizing with gaseous jet or blast By extrusion spraying or gravity fall through orifice | |
