Patents by Inventor Johannes W. M. Keijser

Johannes W. M. Keijser 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).

  • Frame for mounting electronic equipment
    Patent number: D374810
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: October 22, 1996
    Assignee: Minkels Products B.V.
    Inventors: Johannes W. M. Keijser, Jacobus J. Crebolder meergenaamd Krijbolder
  • Cabinet for electronic equipment
    Patent number: D379004
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: April 29, 1997
    Assignee: Minkels Products B.V.
    Inventors: Johannes W. M. Keijser, Jacobus J. Crebolder meergenaamd Krijbolder