Patents by Inventor Heike Zimmerman

Heike Zimmerman 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).

  • Glass ceramic panel for use with a stove or fireplace
    Patent number: D439652
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: March 27, 2001
    Assignee: Schott Glas
    Inventors: Klaus Schönberger, Heike Zimmerman
  • Glass ceramic panel
    Patent number: D452559
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: December 25, 2001
    Assignee: Schott Glas
    Inventors: Klaus Schönberger, Heike Zimmerman