Patents by Inventor Klaus Gressenich

Klaus Gressenich 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).

  • Cook top
    Patent number: 5261387
    Abstract: A cook top includes a flat area for placing kitchenware. The flat area has markings, in the form of lines, dots or the like, identifying heatable cooking areas. The flat area is formed of a plate of glass or glass ceramic material in the vicinity of the markings and remaining glass or glass ceramic material. The markings are formed of the glass or glass ceramic material of the plate. The glass or glass ceramic material of the plate has a different material structure in the vicinity of the markings than the remaining glass or glass ceramic material.
    Type: Grant
    Filed: July 3, 1991
    Date of Patent: November 16, 1993
    Assignee: Bosch-Siemens Hausgeraete GmbH
    Inventor: Klaus Gressenich