Patents by Inventor Nelson Kopatz

Nelson Kopatz 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 making flowable tungsten/copper composite powder
    Patent number: 5897962
    Abstract: A method of making flowable tungsten/copper composite powder by milling an aqueous slurry of a mixture of the desired weight ratio of tungsten powder and copper oxide powder and, optionally, a small amount of cobalt powder, spray-drying the slurry to form spherical, flowable agglomerates, and reducing the agglomerates in a hydrogen atmosphere.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: April 27, 1999
    Assignee: Osram Sylvania Inc.
    Inventors: David L. Houck, Nelson Kopatz, Muktesh Paliwal, Sanjay Sampath
  • Method of making flowable tungsten/copper composite powder
    Patent number: 5439638
    Abstract: A method of making flowable tungsten/copper composite powder by milling an aqueous slurry of a mixture of the desired weight ratio of tungsten powder and copper oxide powder and, optionally, a small amount of cobalt powder, spray-drying the slurry to form spherical, flowable agglomerates, and reducing the agglomerates in a hydrogen atmosphere.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: August 8, 1995
    Assignee: OSRAM Sylvania Inc.
    Inventors: David L. Houck, Nelson Kopatz, Muktesh Paliwal, Sanjay Sampath