Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
David Keith Lyon0
Dwayne T. Friesen0
Walter C. Babcock0
Warren Kenyon Miller0
Daniel Tod Smithey0
Date of Patent
January 27, 2015
Patent Application Number
13533637
Date Filed
June 26, 2012
Patent Citations Received
Patent Primary Examiner
Patent abstract
Disclosed are polymers of hydroxypropyl methyl cellulose acetate succinate (HPMCAS) and hydroxypropyl methyl cellulose acetate (HPMCA) with unique degrees of substitution of hydroxypropoxy, methoxy, acetyl, and succinoyl groups. When used in making compositions comprising a low-solubility drug and such polymers, the polymers provide enhanced aqueous concentrations and/or improved physical stability.
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