Patents by Inventor Dieter Grätz

Dieter Grätz 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).

  • Dental tool
    Patent number: 6508649
    Abstract: In a dental tool in the form of a strip for the abrasion of a tooth and/or tooth filling material, a diamond coating provided on at least one lateral face of the strip, and a tooth system being provided on at least one edge thereof.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: January 21, 2003
    Assignee: Edenta AG Dentalprodukte Switzerland
    Inventor: Dieter Grätz
  • Rotary tool for machining workpieces
    Patent number: 6267595
    Abstract: A rotary tool for material detaching work, especially in dentistry, comprising a machining portion having an outer circumferential surface coated with a nickel layer in which diamond particles are embedded, is characterized in that the nickel layer and the diamond particles protruding from it are covered by a layer of chromium nitride. The duration of the tool is considerably increased by the chromium nitride layer.
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: July 31, 2001
    Assignee: Edenta AG Dentalproducte
    Inventor: Dieter Grätz