Patents by Inventor Jonathon S. Johnson

Jonathon S. 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).

  • Bit for drilling cast iron
    Patent number: 5065647
    Abstract: Method of making and tool bit construction; the bit has a diametrical blade implant of a two-phase material: a main phase of cemented carbine with diffusion bonded cubic boron nitride insert phases placed at high stress corners of such blade, limited strictly to the radial cutting zone of the bit without penetrating the centering zone.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: November 19, 1991
    Assignee: Ford Motor Company
    Inventor: Jonathon S. Johnson