Patents Examined by Leon R. Howe
  • Dosage form for treating cardiovascular diseases
    Patent number: 4950486
    Abstract: An osmotic device is disclosed comprising a first composition, and a second composition with the beneficial drug isradipine in the first composition.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: August 21, 1990
    Assignee: Alza Corporation
    Inventors: Atul D. Ayer, David R. Swanson, Anthony L. Kuczynski
  • Method for tablet preparation
    Patent number: 4898736
    Abstract: Dose uniformity in formulations of highly potent drugs may be achieved by distributing a solution of the active ingredient over a directly compressible tableting vehicle with subsequent evaporation of the solvent, followed by tableting.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: February 6, 1990
    Assignee: Merck & Co., Inc.
    Inventor: Ashok V. Katdare
  • Dosage form for delivering diltiazem
    Patent number: 4859470
    Abstract: A device is disclosed for delivering diltiazem at a controlled and substantially zero order rate over a prolonged period of time.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: August 22, 1989
    Assignee: Alza Corporation
    Inventors: George V. Guittard, Patrick S. L. Wong, Felix Theeuwes, Richard Cortese