Patents by Inventor Earl M. Jahnke

Earl M. Jahnke 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).

  • Blind operating device and method
    Patent number: 4919186
    Abstract: A blind assembly has an endless roll cord and an endless pull cord to avoid the cord storage problem.
    Type: Grant
    Filed: May 24, 1989
    Date of Patent: April 24, 1990
    Inventors: William F. Uecker, Earl M. Jahnke, Kenneth Hughes