Patents by Inventor Johannes Cornelius Franciscus Barten

Johannes Cornelius Franciscus Barten 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).

  • Method of producing a cutting tool insert using laser cutting and ion etching
    Patent number: 6353204
    Abstract: A method of producing a cutting (30) edge on a layer (20) of diamond or other ultra-hard material includes the steps of providing a plate of the material, which plate has major flat surface (D1, D2) on opposite sides thereof, laser cutting the plate transverse to the major surfaces (D1, D2) to produce two or more layers (20) each having a cutting edge (30) defined on a surface (26) produced by the laser cut and exposing the cutting edge (30) to an ion bombardment etch. The layer of diamond or other ultra-hard material having an edge produced in this manner is useful as a tool insert, particularly a surgical blade.
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: March 5, 2002
    Inventors: Paulus Gerhardus Hendrikus Maria Spaay, Wilhelmus Gerarda Maria Nelissen, Johannes Cornelius Franciscus Barten, Erik Lemmens