Patents by Inventor Daniel Paul Kopy

Daniel Paul Kopy 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).

  • Thermally insulating duct liner
    Patent number: 4101700
    Abstract: Disclosed herein is a flexible thermally insulating duct liner comprising a fibrous thermal insulation layer having an organic fibrous layer having an open structure bonded to its working face, the working face being thereafter coated with a flame retardant vinyl polymer containing coating. The duct liner of the present invention has an extremely smooth surface which reduces air friction to a minimum. Still the product is very flexible, easy to work with, and resistant to delamination or working surface failure.
    Type: Grant
    Filed: March 12, 1976
    Date of Patent: July 18, 1978
    Assignee: Johns-Manville Corporation
    Inventors: Richard James Ray, Jr., Daniel Paul Kopy, Theodore Richard Rohweder