Patents by Inventor Fritz Leuenberger

Fritz Leuenberger 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).

  • Patent number: 4228527
    Abstract: An electrically reprogrammable non-volatile memory device is disclosed which includes complementary MOS transistors provided with a polycrystalline silicon floating gate electrode in a common n.sup.- -type substrate. The device comprises three main parts. The first part, which is used for writing, comprises a p-channel writing transistor, a p-channel control transistor and a resistance element. The second part, which comprises a second gate electrode capacitance coupled with the floating gate, is used for erasing. The third part is used for performing information read-out and consists of a p-channel transistor the gate of which forms a portion of the floating gate and the drain of which is connected to a read-out terminal and to the terminal of a loading element having its other terminal connected to a negative supply potential.
    Type: Grant
    Filed: February 22, 1979
    Date of Patent: October 14, 1980
    Assignee: Centre Electronique Horloger S.A.
    Inventors: Bernard Gerber, Fritz Leuenberger