Patents by Inventor Bela J. Nemeth, deceased

Bela J. Nemeth, deceased 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).

  • Preferentially binder enriched cemented carbide bodies and method of manufacture
    Patent number: RE34180
    Abstract: Cemented carbide substrates having substantially A or B type porosity and a binder enriched layer near its surface are described. A refractory oxide, nitride, boride, and/or carbide coating is deposited on the binder enriched surface of the substrate. Binder enrichment is achieved by incorporating Group IVB or VB transition elements. These elements can be added as the metal, the metal hydride, nitride or carbonitride.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: February 16, 1993
    Assignee: Kennametal Inc.
    Inventors: Bela J. Nemeth, deceased, George P. Grab