Patents by Inventor Jeelin Lo

Jeelin Lo 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).

  • Asymmetric membranes in delivery devices
    Patent number: 5698220
    Abstract: A device for controlled release of an active substance through one or more asymmetric membranes by diffusion and/or osmotic pumping.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 16, 1997
    Assignee: Pfizer Inc.
    Inventors: John R. Cardinal, Scott M. Herbig, Richard W. Korsmeyer, Jeelin Lo, Kelly L. Smith, Avinash G. Thombre
  • Use of asymmetric membranes in delivery devices
    Patent number: 5612059
    Abstract: A device for controlled release of an active substance through one or more asymmetric membranes by diffusion and/or osmotic pumping.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: March 18, 1997
    Assignee: Pfizer Inc.
    Inventors: John R. Cardinal, Scott M. Herbig, Richard W. Korsmeyer, Jeelin Lo, Kelly L. Smith, Avinash G. Thombre
  • Gastric retention system for controlled drug release
    Patent number: 5443843
    Abstract: An oral drug delivery system having delayed gastrointestinal transit comprising a non-continuous compressible element and an attached controlled release device and which in the expanded form resists gastrointestinal transit; and a modular system for use therein comprising a non-continuous compressible element and an attached receptacle means for receiving and holding a drug-containing orally administrable controlled release device and which in the expanded form resists gastric transit.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: August 22, 1995
    Assignee: Pfizer Inc.
    Inventors: William J. Curatolo, Jeelin Lo
  • Gastric retention system for controlled drug release
    Patent number: 5002772
    Abstract: An oral drug delivery system having delayed gastrointestinal transit comprising a non-continuous compressible element and an attached controlled release device and which in the expanded form resists gastrointestinal transit; and a modular system for use therein comprising a non-continuous compressible element and an attached receptacle means for receiving and holding a drug-containing orally administrable controlled release device and which in the expanded form resists gastric transit.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: March 26, 1991
    Assignee: Pfizer Inc.
    Inventors: William J. Curatolo, Jeelin Lo
  • Rolled matrix device having enhanced ability to unroll and method for its production
    Patent number: 4861596
    Abstract: A method for enhancing the unrolling of a rolled active agent-containing laminate device in an aqueous use environment which comprises coating one side of the device with an elastomer prior to constraining it in a rolled configuration; and the devices so treated.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: August 29, 1989
    Assignee: Pfizer Inc.
    Inventors: Alan C. Curtiss, Jeelin Lo