Patents by Inventor Jakob Marquardt

Jakob Marquardt 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).

  • Electronic Key
    Patent number: 6216501
    Abstract: An electronic key for actuating a lock, in particular for use in locking systems in automobiles, is described. The housing of the electronic key has the shape of a thin wedge, the narrow end of the wedge being designed for insertion into the lock. The parts active for the actuation of the lock are also accommodated here. Moreover, the housing has a receptacle for a key bit for a mechanical lock.
    Type: Grant
    Filed: August 12, 1997
    Date of Patent: April 17, 2001
    Assignee: Marquardt GmbH
    Inventors: Jakob Marquardt, Karl Mueller, Ekkehard Sachs