Patents by Inventor Wilfried Drewes

Wilfried Drewes 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).

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    Patent number: D544805
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: June 19, 2007
    Assignees: Electronic Controls Company, Ella KGAA Hueck & Co
    Inventors: Robert W. Corrigan, Gerd O. Schmidt, Wilfried Drewes