Patents by Inventor Gert Even

Gert Even 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).

  • Roofing web coated with plasticized polyvinyl chloride on both sides
    Patent number: 4452850
    Abstract: A roofing web copmrising a fabric coated on both surfaces with plasticized polyvinyl chloride compositions containing different immiscible plasticizers.
    Type: Grant
    Filed: August 14, 1981
    Date of Patent: June 5, 1984
    Inventors: Gert Even, Josef Kern, Ernest de Ruiter