Patents by Inventor David M. Pentenburg

David M. Pentenburg 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).

  • Cast metal-polymeric articles
    Patent number: 5399417
    Abstract: Bearing compositions having a polymeric core and cast outer metal exhibit excellent structural integrity in use.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: March 21, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: James F. McNamara, Edward A. Miller, David M. Pentenburg, Arnold W. Raymond