Glenn W. Heffner

Person

  • Wilmington, DE, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Extrusion process and product

    • Patent number 7,579,418
    • Issue date Aug 25, 2009
    • E. I. Du Pont de Nemours and Company
    • Patrick Anthony DeFeo
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

  • Information Patent Application

    Extrusion process and product

    • Publication number 20040232580
    • Publication date Nov 25, 2004
    • Patrick Anthony Defeo
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL