Patents by Inventor David Kaupanger

David Kaupanger 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).

  • Dome headed roofing screw
    Publication number: 20040052610
    Abstract: A dome headed design for a roofing screw intended to be used as a fastener for metal roofs. This new design for a roofing screw will improve its use. This fastener will lessen snow and ice damage to metal roofs in colder climates, and Produce less need to shovel snow and ice off of roofs.
    Type: Application
    Filed: September 17, 2002
    Publication date: March 18, 2004
    Inventor: David Kaupanger