Patents by Inventor Michael Jacobus Gerhardus Bartels

Michael Jacobus Gerhardus Bartels 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: D412992
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: August 17, 1999
    Inventor: Michael Jacobus Gerhardus Bartels