Patents Represented by Attorney J. W. Routh

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  • Pharmaceutical suspension systems
    Patent number: 5759579
    Abstract: A pharmaceutically acceptable liquid suspension system is provided for solid finely divided pharmaceutical actives incompletely soluble in water, the suspension system comprising water, xanthan gum and hydroxypropyl methylcellulose.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: June 2, 1998
    Assignee: American Home Products Corporation
    Inventors: Kiran Pal Singh, Shankar D. Popli
  • Anesthetic compositions
    Patent number: 5446063
    Abstract: Novel topical anesthetic compositions containing high concentrations of benzocaine in a micronized powder form suspended in an emollient vehicle.
    Type: Grant
    Filed: March 8, 1991
    Date of Patent: August 29, 1995
    Assignee: American Home Products Corporation
    Inventors: Gerald L. Reuter, Maureen M. Harrison, Mark E. Coons