Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Peptide containing doai
Reexamination Certificate
2006-09-05
2006-09-05
Gupta, Anish (Department: 1654)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Peptide containing doai
C424S485000, C424S486000, C424S487000, C424S488000, C514S772200, C514S772300, C514S772400, C514S772500, C514S772600, C530S350000
Reexamination Certificate
active
07101840
ABSTRACT:
A method of forming a polymeric drug formulation in which a water-soluble drug is blended with a water-insoluble tissue-compatible polymer that is miscible in the solid phase with the drug, and with a poly(alkylene oxide), in a solvent system capable of forming a homogeneous solution of the drug, the tissue-compatible polymer and the poly(alkylene oxide), after which the solution is added to a non-solvent for the drug, the tissue-compatible polymer and the poly(alkylene oxide), so that a microdomain-separated solid co-precipitate of the drug, the tissue-compatible polymer and the poly(alkylene oxide) is formed, wherein the poly(alkylene oxide) is blended in an amount effective to form phase-separated microdomains in said co-precipitate.
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Brocchini Stephen
Hanson Stephen R.
Kohn Joachim B.
Gupta Anish
Rutgers The State University
Synnestvedt & Lechner LLP
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