Patents by Inventor Jeffry Lee

Jeffry Lee 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).

  • Zero order release and temperature-controlled microcapsules and process for the preparation thereof
    Patent number: 7179407
    Abstract: A microcapsule composition comprising a core material in a matrix of polymorphic shell material, releases said core material in an aqueous environment in accordance with zero order linear release profile. A preferred composition comprises a core material having a degree of water solubility entrapped in a beta crystalline matrix of water insoluble shell material which matrix may, optionally, be surrounded by a contiguous core material-free layer of water insoluble shell material. Also disclosed is a process for the preparation of microcapsules comprising subjecting a flowable mixture of core material and a first amount of water insoluble shell material to a pressure force to form a pressure-treated mixture, and passing said pressure-treated mixture through a spray nozzle into a chilling zone to form a solidified composition.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: February 20, 2007
    Assignee: Verion Inc.
    Inventors: Farid Vaghefi, Jeffry Lee, Vijendra Nalamothu
  • Zero order release and temperature-controlled microcapsules and process for the preparation thereof
    Publication number: 20030146530
    Abstract: A microcapsule composition comprising a core material in a matrix of polymorphic shell material, releases said core material in an aqueous environment in accordance with zero order linear release profile. A preferred composition comprises a core material having a degree of water solubility entrapped in a beta crystalline matrix of water insoluble shell material which matrix may, optionally, be surrounded by a contiguous core material-free layer of water insoluble shell material. Also disclosed is a process for the preparation of microcapsules comprising subjecting a flowable mixture of core material and a first amount of water insoluble shell material to a pressure force to form a pressure-treated mixture, and passing said pressure-treated mixture through a spray nozzle into a chilling zone to form a solidified composition.
    Type: Application
    Filed: February 24, 2003
    Publication date: August 7, 2003
    Applicant: Verion Inc.
    Inventors: Farid Vaghefi, Jeffry Lee, Vijendra Nalamothu
  • Zero order release and temperature-controlled microcapsules and process for the preparation thereof
    Patent number: 6544646
    Abstract: A microcapsule composition comprising a core material in a matrix of polymorphic shell material, releases said core material in an aqueous environment in accordance with zero order linear release profile. A preferred composition comprises a core material having a degree of water solubility entrapped in a beta crystalline matrix of water insoluble shell material which matrix may, optionally, be surrounded by a contiguous core material-free layer of water insoluble shell material. Also disclosed is a process for the preparation of microcapsules comprising subjecting a flowable mixture of core material and a first amount of water insoluble shell material to a pressure force to form a pressure-treated mixture, and passing said pressure-treated mixture through a spray nozzle into a chilling zone to form a solidified composition.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: April 8, 2003
    Assignee: Verion Inc.
    Inventors: Farid Vaghefi, Jeffry Lee, Vijendra Nalamothu
  • Zero order release and temperature-controlled microcapsules and process for the preparation thereof
    Publication number: 20010044026
    Abstract: A microcapsule composition comprising a core material in a matrix of polymorphic shell material, releases said core material in an aqueous environment in accordance with zero order linear release profile. A preferred composition comprises a core material having a degree of water solubility entrapped in a beta crystalline matrix of water insoluble shell material which matrix may, optionally, be surrounded by a contiguous core material-free layer of water insoluble shell material. Also disclosed is a process for the preparation of microcapsules comprising subjecting a flowable mixture of core material and a first amount of water insoluble shell material to a pressure force to form a pressure-treated mixture, and passing said pressure-treated mixture through a spray nozzle into a chilling zone to form a solidified composition.
    Type: Application
    Filed: April 27, 2001
    Publication date: November 22, 2001
    Inventors: Farid Vaghefi, Jeffry Lee, Vijendra Nalamothu