Patents by Inventor Hubert Kisfeld

Hubert Kisfeld 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).

  • Protecting device for electrical appliances
    Publication number: 20040047105
    Abstract: A protecting device for electrical appliances, connected in series with an AC electric circuit of a power supply of the electrical appliance, having an electrically conductive winding, the winding comprising an ohmic resistance for restricting input currents, as well as an interruption function, and a coil form onto which the winding is applied in at least one winding layer, characterized in that the electrically conductive winding is a bifilar winding.
    Type: Application
    Filed: July 2, 2003
    Publication date: March 11, 2004
    Applicant: FRIWO Geratebau GmbH
    Inventors: Michael Bothe, Ralf Schroder Gen. Berghegger, Hubert Kisfeld, Michael Feldgen