Patents by Inventor D. W. Diem

D. W. Diem 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).

  • Patent number: D373987
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: September 24, 1996
    Assignee: Performance Marketing, Inc.
    Inventor: D. W. Diem
  • Patent number: D374857
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: October 22, 1996
    Assignee: Performance Marketing, Inc.
    Inventor: D. W. Diem