Patents by Inventor Karl Adolf Krawinkel

Karl Adolf Krawinkel 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).

  • Display apparatus
    Patent number: 6212806
    Abstract: A display apparatus includes a base member that defines a display surface and nine panel segments mounted to the base member. At least eight of the panel segments are moveable between a first position in which a panel segment lies in a general parallel and overlapping relation with the display surface and a second position. A driving assembly moves the eight panel segments between the first and second positions.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: April 10, 2001
    Inventor: Karl Adolf Krawinkel