Patents by Inventor Uma Iyer

Uma Iyer 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).

  • Process and composition for the development of controlled release gemfibrozil dosage form
    Patent number: 5492700
    Abstract: Gemfibrozil formulations prepared from a single granulation of gemfibrozil and a release-control agent are disclosed. The release-control agent is present in an amount sufficient to provide both immediate and controlled release of gemfibrozil. A method of preparing the formulation and a compressed tablet are also disclosed.
    Type: Grant
    Filed: July 26, 1994
    Date of Patent: February 20, 1996
    Assignee: Warner-Lambert Company
    Inventors: Isaac Ghebre-Sellassie, Uma Iyer
  • Process and composition for the development of controlled release gemfibrozil dosage form
    Patent number: 5358723
    Abstract: Gemfibrozil formulations prepared from a single granulation of gemfibrozil and a release-control agent are disclosed. The release-control agent is present in an amount sufficient to provide both immediate and controlled release of gemfibrozil. A method of preparing the formulation and a compressed tablet are also disclosed.
    Type: Grant
    Filed: May 4, 1993
    Date of Patent: October 25, 1994
    Assignee: Warner-Lambert Company
    Inventors: Isaac Ghebre-Sellassie, Uma Iyer
  • Pharmaceutically useful micropellets with a drug-coated core and controlled-release polymeric coat
    Patent number: 5084287
    Abstract: A pharmaceutical preparation comprising drug micropellets containing a drug coated on a core material wherein each pellet ranges in size from about 70 microns to 750 microns and wherein each micropellet is coated with a controlled release coating.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: January 28, 1992
    Assignee: Warner-Lambert Company
    Inventors: Isaac Ghebre-Sellassie, Uma Iyer
  • Water dispersible gemfibrozil compositions
    Patent number: 4971804
    Abstract: A water-dispersible formulation of gemfibrozil comprising finely divided particles of pure gemfibrozil uniformly coated with a mixture of a wax and at least one hydrophilic material, the coated particles in turn being overcoated with a minor amount of a surfactant.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: November 20, 1990
    Assignee: Warner-Lambert Company
    Inventors: Isaac Ghebre-Sellassie, Robert H. Gordon, Uma Iyer, Mahdi B. Fawzi
  • Extended release gemfibrozil composition
    Patent number: 4925676
    Abstract: A disintegratable gemfibrozil tablet providing both immediate and enteric release is compressed from a mixture of a first granulation of gemfibrozil with at least one acid-disintegratable binder and a second granulation formed from the first granulation but regranulated or coated with an alkali-disintegratable formulation of at least one substantially alkali-soluble and substantially acid-insoluble polymer.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: May 15, 1990
    Assignee: Warner-Lambert Company
    Inventors: Isaac Ghebre-Sellassie, Uma Iyer, Mahdi B. Fawzi
  • Penetration enhancement system
    Patent number: 4908389
    Abstract: The penetration of various drugs through living membranes, eg., skin, is improved by their use in topical compositions containing certain penetration-enhancer systems.
    Type: Grant
    Filed: August 27, 1986
    Date of Patent: March 13, 1990
    Assignee: Warner-Lambert Company
    Inventors: Majid Mahjour, Uma Iyer, Mahdi B. Fawzi
  • Sustained release pharmaceutical preparations
    Patent number: 4810501
    Abstract: Sustained release solid dosage forms--i.e., tablets, pellets, granules, and powders--can be made using a combination of polymeric and ionic particulate materials to modify release profiles, permeability and processability.
    Type: Grant
    Filed: June 17, 1986
    Date of Patent: March 7, 1989
    Assignee: Warner-Lambert Company
    Inventors: Isaac Ghebre-Sellassie, Russell U. Nesbitt, Jr., Uma Iyer, Mahdi B. Fawzi