Patents by Inventor Robert J. Heim

Robert J. Heim 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).

  • Liner material and method
    Patent number: 4529660
    Abstract: A laminated material and method, a liner using the material, and several methods of manufacturing the material.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: July 16, 1985
    Assignee: Precision Punch & Plastics Co.
    Inventor: Robert J. Heim