Patents by Inventor Kuchi S. Murthy

Kuchi S. Murthy 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).

  • Stabilization of enteric coated dosage form
    Patent number: 5068110
    Abstract: The present invention is a stabilized enteric-coated pharmaceutical dosage form and processes for the preparation thereof. Dissolution stability after storage of the dosage form under high stress conditions is improved by an enteric-coated dosage form having an enteric coating wherein the coating is of the acrylic resin kind of from 14 mg/cm.sup.2 to 24 mg/cm.sup.2 or an enteric coating wherein the coating is of the acetate kind of from 14 mg/cm.sup.2 to 24 mg/cm.sup.2 and having a second coating of hydrophilic coating for example, hydroxypropyl cellulose, hydroxymethyl cellulose or hydroxypropylmethyl cellulose.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: November 26, 1991
    Assignee: Warner-Lambert Company
    Inventors: Mahdi B. Fawzi, Daniel A. Kubert, Kuchi S. Murthy
  • Methylene pyrrolidone copolymers for contact lens and pharmaceutical preparations
    Patent number: 5035884
    Abstract: A new series of copolymers which are useful as coatings for solid dosage forms, for transdermal devices, for wound dressing materials, and for contact lenses. Also disclosed are methods for preparing monomers and polymers as well as pharmaceutical compositions containing such polymers.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: July 30, 1991
    Assignee: Warner-Lambert Company
    Inventors: Suk-Zu Song, Surendra C. Mehta, Kuchi S. Murthy, Russell U. Nesbitt, Mahdi B. Fawzi
  • Copolymers from n-alkyl-3-alkenylene-2-pyrrolidone
    Patent number: 4931519
    Abstract: A new series of copolymers which are useful as coatings for solid dosage forms, for transdermal devices, for wound dressing materials, and for contact lenses. Also disclosed are methods for preparing monomers and polymers as well as pharmaceutical compositions containing such polymers.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: June 5, 1990
    Assignee: Warner-Lambert Company
    Inventors: Suk-Zu Song, Surendra C. Mehta, Kuchi S. Murthy, Russell U. Nesbitt, Mahdi B. Fawzi
  • N-substituted-3-alkylene-2-pyrrolidone compounds
    Patent number: 4851545
    Abstract: A new series of copolymers such as N-isopropyl-3-methylene-2-pyrrolidone and 2-hydroxyethylmethacrylate which are useful as coatings for solid dosage forms, for transdermal devices, for wound dressing materials, and for contact lenses. Also disclosed are methods for preparing monomers and polymers as well as pharmaceutical compositions containing such polymers.
    Type: Grant
    Filed: June 2, 1987
    Date of Patent: July 25, 1989
    Assignee: Warner-Lambert Company
    Inventors: Suk-Zu Song, Surendra C. Mehta, Kuchi S. Murthy, Russell U. Nesbitt, Mahdi B. Fawzi
  • Drug compositions stabilized against oxidation
    Patent number: 4830853
    Abstract: The oxidation--and color-stability of certain ace inhibitors is optimized when they are formulated with a stabilizer and at least one lubricant and/or excipient.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: May 16, 1989
    Assignee: Warner-Lambert Company
    Inventors: Kuchi S. Murthy, Michael R. Harris, Gerard C. Hokanson, Robert G. Reisch, Jr., Mahdi B. Fawzi, Frank Waldman
  • Stabilized drug compositions
    Patent number: 4793998
    Abstract: The cyclization and hydrolysis of certain ACE inhibitors is minimized when they are formulated with a stabilizer and at least one lubricant and/or excipient.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: December 27, 1988
    Assignee: Warner-Lambert Company
    Inventors: Kuchi S. Murthy, Michael R. Harris, Gerard C. Hokanson, Robert G. Reisch, Jr., Frank Waldman, Mahdi B. Fawzi