Ella D. Openstone

Person

  • Wilmington, DE, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Process for imparting stain-resist agent

    • Patent number 5,057,121
    • Issue date Oct 15, 1991
    • E. I. Du Pont de Nemours and Company
    • Patrick H. Fitzgerald
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...