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Richard James Powell

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  • Orange, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    High melt swell polymer
    • Patent number 6,903,163
    • Issue date Jun 7, 2005
    • E. I. Du Pont de Nemours and Company
    • Richard James Powell
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    High melt swell polymer
    • Patent number 6,518,365
    • Issue date Feb 11, 2003
    • E. I. Du Pont de Nemours and Company
    • Richard James Powell
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Cook-in packaging and methods relating thereto
    • Patent number 5,827,559
    • Issue date Oct 27, 1998
    • E. I. Du Pont de Nemours and Company
    • Richard James Powell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Flexible, low haze chlorine-free ethylene copolymer article
    • Patent number 5,399,401
    • Issue date Mar 21, 1995
    • E. I. Du Pont de Nemours and Company
    • Richard J. Powell
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Stabilized copolymers of ethylene with ethylenically unsaturated ca...
    • Patent number 5,276,135
    • Issue date Jan 4, 1994
    • E. I. Du Pont de Nemours and Company
    • Richard J. Powell
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Silica coated olefin-acid copolymer molding pellets
    • Patent number 4,663,383
    • Issue date May 5, 1987
    • E. I. Du Pont de Nemours and Company
    • David J. Lowe
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for preparing ionically crosslinked copolymers
    • Patent number 3,969,434
    • Issue date Jul 13, 1976
    • E. I. Du Pont de Nemours and Company
    • Richard James Powell
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

  • Information Patent Application

    High melt swell polymer
    • Publication number 20030060570
    • Publication date Mar 27, 2003
    • Richard James Powell
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...