Patents Examined by Willaim E. Benston, Jr.
  • Medicinal aerosol formulations
    Patent number: 5439670
    Abstract: A self-propelling aerosol formulation which may be free from CFC's which comprises a medicament, 1,1,1,2-tetrafluoroethane, a surface active agent and at least one compound having a higher polarity than 1,1,1,2-tetrafluoroethane.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: August 8, 1995
    Assignee: Riker Laboratories, Inc.
    Inventors: Tarlochan S. Purewal, David J. Greenleaf