Patents by Inventor Robert Shih-Liang Chao

Robert Shih-Liang Chao 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).

  • Bis-arylsulfones
    Publication number: 20040029865
    Abstract: The present invention provides pharmaceutically active compounds useful for the treatment of diseases or disorders of the central nervous system.
    Type: Application
    Filed: May 14, 2003
    Publication date: February 12, 2004
    Inventors: Brad A. Acker, Robert Shih-Liang Chao, Michael Hawley
  • Intravaginal clindamycin ovule composition
    Patent number: 6495157
    Abstract: A highly storage-stable composition for vaginal administration of clindamycin is disclosed which is useful for the treatment of bacterial vaginosis. The composition is a vaginal suppository containing an antimicrobially effective amount of clindamycin dispersed in a Hard Fat NF suppository base. Hard Fat NF suppository bases provide a clindamycin product having long term storage stability while providing efficacy against bacterial vaginosis which is equivalent to clindamycin vaginal creams.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: December 17, 2002
    Assignee: Pharmacia & Upjohn Company
    Inventors: Lorraine Elisabeth Pena, Phil Bryan Bowman, Robert Shih-Liang Chao, Carolyn V. Pesheck
  • Physically stable solid form of a fluoroquinolone
    Patent number: 5985893
    Abstract: Novel crystal forms of the fluoroquinolone, [S-(R*,S*)]-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-[3-[1-(methylam ino)ethyl]-1-pyrrolidinyl]-4-oxo-3-quinolinecarboxylic acid are disclosed. The forms are characterized by one methanol solvate form, and three anhydrous polymorphic forms, of which, Form III exhibits greatest stability and decreased hygroscopicity.
    Type: Grant
    Filed: May 1, 1996
    Date of Patent: November 16, 1999
    Assignee: Pharmacia & Upjohn Company
    Inventors: Xuanqiang Yu, William C. Schinzer, Michael J. Dunn, Robert Shih-Liang Chao, Dale S. Aldrich, Azhwarsamy Jeganathan, Michael S. Bergren