EP0622072A2 — Stable aqueous dispersions containing liposomes
Assigned to Wakamoto Pharmaceutical Co Ltd · Expires 1994-11-02 · 32y expired
What this patent protects
An aqueous dispersion containing liposomes comprising yolk lecithin and/or soybean lecithin as lipids for forming liposomes wherein the dispersion contains a hydroxy acid and an amino acid, which hardly shows coloration, shows little leak of drugs encapsulated in the liposomes an…
USPTO Abstract
An aqueous dispersion containing liposomes comprising yolk lecithin and/or soybean lecithin as lipids for forming liposomes wherein the dispersion contains a hydroxy acid and an amino acid, which hardly shows coloration, shows little leak of drugs encapsulated in the liposomes and is stable in a broad pH range.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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