Patents by Inventor James W. Wittenborn

James W. Wittenborn 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).

  • Patent number: 9061391
    Abstract: The sharpener holder is a device for sharpening blades of knives, scissors, axes, planes, chisels, and other cutting implements. The device accommodates any off-the-shelf sharpener rod whereas other sharpeners require the use of a unique or special rod built into the sharpener assembly. Most users already have sharpening rods, so all they have to do is put their existing sharpening rods into the sharpener holder to sharpen their knives or other cutting implements. The sharpener rod in the rod holder is securely clamped in position. The adjustable base is rotated to the required sharpening angle and securely clamped in position. The user moves the blade vertically against the sharpening rod at a perpendicular angle with respect to the base assembly to sharpen the blade.
    Type: Grant
    Filed: October 20, 2012
    Date of Patent: June 23, 2015
    Inventor: James W. Wittenborn
  • Publication number: 20140113529
    Abstract: The sharpener holder is a device for sharpening blades of knives, scissors, axes, planes, chisels, and other cutting implements. The device accommodates any off-the-shelf sharpener rod whereas other sharpeners require the use of a unique or special rod built into the sharpener assembly. Most users already have sharpening rods, so all they have to do is put their existing sharpening rods into the sharpener holder to sharpen their knives or other cutting implements. The sharpener rod in the rod holder is securely clamped in position. The adjustable base is rotated to the required sharpening angle and securely clamped in position. The user moves the blade vertically against the sharpening rod at a perpendicular angle with respect to the base assembly to sharpen the blade.
    Type: Application
    Filed: October 20, 2012
    Publication date: April 24, 2014
    Inventor: James W. Wittenborn