Patents by Inventor Steven W. Collier

Steven W. Collier has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Directly compressible formulations of azithromycin
    Patent number: 7070811
    Abstract: The present invention relates to a dry blend, used for forming azithromycin tablets by direct compression, comprising non-dihydrate azithromycin and at least one pharmaceutically acceptable excipient. This invention also relates to an azithromycin tablet comprising non-dihydrate azithromycin and at least one pharmaceutically acceptable excipient. Preferably, the azithromycin tablet is formed by directly compressing the dry blend, of the present invention, to form said azithromycin tablet. Preferably, the azithromycin tablet, of the present invention, contains a dosage of 250 mgA, 500 mgA or 600 mgA of azithromycin. This invention further relates to an azithromycin tablet which is produced by forming a dry blend of a non-granulated azithromycin form A and at least one pharmaceutically acceptable excipient. The azithromycin tablet is then formed by directly compressing the dry blend.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: July 4, 2006
    Assignee: Pfizer Inc.
    Inventors: Brendan Murphy, Steven W. Collier, Ernest Quan, Barbara A. Johnson
  • Directly compressible formulations of azithromycin
    Publication number: 20030165563
    Abstract: The present invention relates to a dry blend, used for forming azithromycin tablets by direct compression, comprising non-dihydrate azithromycin and at least one pharmaceutically acceptable excipient.
    Type: Application
    Filed: December 20, 2002
    Publication date: September 4, 2003
    Applicant: Pfizer Inc.
    Inventors: Brendan Murphy, Steven W. Collier, Ernest Quan, Barbara A. Johnson