Method for preparing biphasic multilamellar lipid vesicles
March 13, 2018. 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 ReferencesProcess for topically producing cutaneous vasodilation for the treatment of vasospastic or ischemic conditions Method of encapsulating biologically active materials in multilamellar lipid vesicles (MLV) Stable plurilamellar vesicles, their preparation and use Method for producing liposomes Multiphase liposomal drug delivery system Administration of drugs with multiphase liposomal delivery system Paucilamellar lipid vesicles Stable plurilamellar vesicles Stable plurilamellar vesicles Hybrid paucilamellar lipid vesicles InventorAssigneeApplicationNo. 042097 filed on 03/13/1998US Classes:424/450, Liposomes264/4.1, 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.)264/4.32, Microcapsule wall containing two or more layers264/4.6, Solid-walled microcapsule formed by physically removing a constituent (e.g., evaporation, extraction, etc.)424/1.21, Molecular bilayer structure (e.g., vesicle, liposome)424/9.321, Liposome424/9.51, Liposome containing424/85.7, Alpha or leukocyte424/417Coated particulate form (e.g., liposome, etc.)ExaminersPrimary: Kishore, Gollamudi S.Attorney, Agent or FirmForeign Patent References
International ClassA61K 009/127AbstractA biphasic multilamellar lipid vesicle comprising a plurality of spaced apart lipid bilayers that include a liposome-forming component and optionally a biologically active agent entrapped within the lipid bilayers. The lipid vesicle also comprises peripheral aqueous solution compartments formed between the lipid bilayers and a central lipophilic core compartment substantially at the center of the multilamellar lipid vesicle.Other References
Field of SearchLiposomesMolecular bilayer structure (e.g., vesicle, liposome) Liposome Liposome containing Coated particulate form (e.g., liposome, etc.) Microcapsule with fluid core (includes liposome) Liquid 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.) Microcapsule wall containing two or more layers Solid-walled microcapsule formed by physically removing a constituent (e.g., evaporation, extraction, etc.) DISPERSION OR EMULSION Oil-water type Mineral oil-water type Quick break type Polyoxyalkylated compound containing Organic sulfonate, sulfate or sulfite containing Higher fatty acid or derivative containing | |
