Patents by Inventor Ivan T. Smith

Ivan T. Smith 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).

  • Low density loose fill insulation
    Patent number: 4468336
    Abstract: A low settled density loose fill heat insulation for building structures is formed by the addition to cellulose insulation of staple fibers selected from the group polypropylene, acetate, polyethylene, polyester, acrylic and vinyl. The staple fibers extend the cellulose insulation.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: August 28, 1984
    Inventor: Ivan T. Smith