Patents by Inventor Craig C. Robertson

Craig C. Robertson 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).

  • Wallboard containing scrim and matt
    Patent number: 6995098
    Abstract: Cement wallboards and methods for their preparation are disclosed. The wallboards comprise two scrim layers and one mat layer. The wallboards have a smooth surface, are strong, lightweight, and easy to score and snap. Tiles can be readily adhered to the boards. The wallboards can be used in general commercial and residential construction, and are particularly attractive for use in high water/moisture areas such as bathrooms and shower enclosures.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: February 7, 2006
    Assignee: National Gypsum Properties, LLC
    Inventors: Michael J McGrady, Craig C. Robertson
  • WALLBOARD CONTAINING SCRIM AND MATT
    Publication number: 20040209060
    Abstract: Cement wallboards and methods for their preparation are disclosed. The wallboards comprise two scrim layers and one mat layer. The wallboards have a smooth surface, are strong, lightweight, and easy to score and snap. Tiles can be readily adhered to the boards. The wallboards can be used in general commercial and residential construction, and are particularly attractive for use in high water/moisture areas such as bathrooms and shower enclosures.
    Type: Application
    Filed: April 15, 2003
    Publication date: October 21, 2004
    Applicant: National Gypsum Properties LLC
    Inventors: Michael J. McGrady, Craig C. Robertson