Patents by Inventor Allen M. Garrett

Allen M. Garrett 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 members without auxiliary facers and related methods
    Patent number: 6117375
    Abstract: An insulation board (10) insulation board comprising a foam core (11) selected from the group consisting of polyisocyanurate and polyurethane materials and mixtures thereof; the board being devoid of facers. A method of covering roofs comprises applying insulation boards to a roof deck, the insulation boards comprising a foam core selected from the group consisting of polyisocyanurate and polyurethane materials and mixtures thereof, the boards being devoid of facers; and, applying a weather protective layer over the insulation boards.
    Type: Grant
    Filed: April 1, 1998
    Date of Patent: September 12, 2000
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Allen M. Garrett, John B. Letts