Patents by Inventor Ian G. Stewart

Ian G. Stewart 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).

  • INTUMESCENT STRIPS FOR STRUCTURAL BEAM FIRE PROTECTION
    Publication number: 20090148660
    Abstract: An intumescent strip for fire protecting cellular beams is disclosed. The intumescent strips of the present invention are made from flexible intumescent compositions and retain their flexibility after being molded into a solid. The strips are often generally U-shaped to fit over the edge of an opening in a cellular beam. The intumescent strip may be adhered to the beam with an adhesive and the entire beam including the strips may be covered with a thin film intumescent coating.
    Type: Application
    Filed: February 19, 2008
    Publication date: June 11, 2009
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventors: Mark I. Cooper, Ian G. Stewart, Erik M. W. van Schaijk, Neil A. Wheat