Drug – bio-affecting and body treating compositions – Effervescent or pressurized fluid containing – Organic pressurized fluid
Reexamination Certificate
2005-07-26
2005-07-26
Kunz, Gary (Department: 1616)
Drug, bio-affecting and body treating compositions
Effervescent or pressurized fluid containing
Organic pressurized fluid
C424S046000, C424S489000, C424S499000, C514S002600, C514S003100, C514S021800, C128S200140
Reexamination Certificate
active
06921527
ABSTRACT:
According to the subject invention, dispersible dry powder pharmaceutical-based compositions are provided, including methods for their manufacture and dry powder dispersion devices. A dispersible dry powder pharmaceutical-based composition is one having a moisture content of less than about 10% by weight (% w) water, usually below about 5% w and preferably less than about 3% w; a particle size of about 1.0-5.0 μm mass median diameter (MMD), usually 1.0-4.0 μm MMD, and preferably 1.0-3.0 μm MMD; a delivered dose of about >30%, usually >40%, preferably >50%, and most preferred >60%; and an aerosol particle size distribution of about 1.0-5.0 μm mass median aerodynamic diameter (MMAD), usually 1.5-4.5 μm MMAD, and preferably 1.5-4.0 μm MMAD. Such compositions are of pharmaceutical grade purity.
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Eljamal Mohammed
Foster Linda
Patton John S.
Platz Robert M.
Evans Susan T.
Haghighatian Mina
Kunz Gary
Nektar Therapeutics
Wilson Mark S.
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