Patents by Inventor Darian Johnson

Darian Johnson 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).

  • Utility knife blade having an uneven cutting edge
    Publication number: 20040187314
    Abstract: A blade for a utility knife provides a cutting edge that is undulate, toothed, or otherwise multiply edged, but is not designed to be used with a sawing motion, and, because of its short length, would not be practically used with a sawing motion. Such a blade allows for easier cutting of a wider range of materials, and allows for an extended useful lifetime as compared to a traditional flat-edged utility knife blade. Such a blade may be used in conjunction with a variety of utility knife housing designs, and may be provided for use in a method of cutting.
    Type: Application
    Filed: March 9, 2004
    Publication date: September 30, 2004
    Inventor: Darian A. Johnson
  • Utility knife blade
    Patent number: D582229
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: December 9, 2008
    Inventor: Darian Johnson