Patents by Inventor Donald F. Voelkert

Donald F. Voelkert 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: D252082
    Type: Grant
    Filed: August 18, 1977
    Date of Patent: June 12, 1979
    Assignee: ElecTroMation, Inc.
    Inventor: Donald F. Voelkert
  • Patent number: D253409
    Type: Grant
    Filed: August 18, 1977
    Date of Patent: November 13, 1979
    Assignee: ElecTroMation, Inc.
    Inventor: Donald F. Voelkert
  • Patent number: D275488
    Type: Grant
    Filed: December 13, 1982
    Date of Patent: September 11, 1984
    Assignee: Electromation, Inc.
    Inventor: Donald F. Voelkert