Patents by Inventor David Brian Ollett

David Brian Ollett 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).

  • Reducing humping of roofing shingles
    Patent number: 6471812
    Abstract: A method of reducing humping of a laminated roofing shingle when the shingle is stacked with others of the shingle involves shingles that include a longitudinal central area having an overlay laminated with an underlay. The method involves providing a depression in the shingle that extends through at least a portion of the central area. In another embodiment, the invention is a method of reducing humping of a laminated roofing shingle including an overlay, an underlay, and an adhesive between the overlay and the underlay in an area of the shingle. The method involves providing a depression in the shingle that extends through at least a portion of the adhesive area. In a further embodiment, the invention is a method of reducing humping of a roofing shingle having a sealant in an area of the shingle. The method involves providing a depression in the shingle that extends through at least a portion of the sealant area.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: October 29, 2002
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventors: Thomas Kent Thompson, David Brian Ollett