Patents by Inventor Craig L. McAllester

Craig L. McAllester 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).

  • Slope determination system
    Patent number: 6968627
    Abstract: A hand-held system for determining the slope of an element having an irregular surface, such as a shingled roof, or along a surface that is partially obscured by adjacent elements. The system comprises an inclinometer having a double indicator to provide two simultaneous readings of slope.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: November 29, 2005
    Inventor: Craig L. McAllester