Patents by Inventor Sally I. Stephens

Sally I. Stephens 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).

  • Dosage form with improved delivery capability
    Patent number: 4960416
    Abstract: A dosage form is disclosed comprising a wall surrounding a compartment housing a first layer comprising a drug formulation, a middle layer comprising a hydrophobic composition, and a third layer comprising a hydrophilic composition.
    Type: Grant
    Filed: July 10, 1989
    Date of Patent: October 2, 1990
    Assignee: ALZA Corporation
    Inventors: Sally I. Stephens, Patrick S. L. Wong
  • Dosage form with improved delivery capability
    Patent number: 4863456
    Abstract: A dosage form is disclosed comprising a wall surrounding a compartment housing a first layer comprising a drug formulation, a middle layer comprising a hydrophobic composition, and a third layer comprising a hydrophilic composition.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: September 5, 1989
    Assignee: ALZA Corporation
    Inventors: Sally I. Stephens, Patrick S. L. Wong
  • Chlorpheniramine therapy
    Patent number: 4857330
    Abstract: An osmotic dosage form is disclosed for delivering chlorpheniramine.
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: August 15, 1989
    Assignee: Alza Corporation
    Inventors: Sally I. Stephens, Lawrence G. Hamel, Glen E. Barclay, Patrick S. L. Wong
  • Verapamil dosage form
    Patent number: 4753802
    Abstract: An osmotic dosage form comprising verapamil and mannitol in a nonequilibrium ratio.
    Type: Grant
    Filed: March 19, 1986
    Date of Patent: June 28, 1988
    Assignee: Alza Corporation
    Inventors: Sally I. Stephens, L. G. Hamel