Patents by Inventor Todd R. Hoffman

Todd R. Hoffman 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).

  • Total magnetic flux measuring device
    Patent number: 6239596
    Abstract: A magnetic flux measuring device includes a coil of conductive material for sensing magnetic flux and producing a voltage in the presence of a changing magnetic field. An analog to digital converter is coupled to an output of the sensing coil for sampling the voltage produced by the magnetic flux sensing coil and for converting that voltage to digital data. A digital integrating device determines the total magnetic flux sensed by the coil over an event time interval by integrating the digital data over that same time interval.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: May 29, 2001
    Inventors: Joseph J. Stupak, Jr., Todd R. Hoffman, Rian M. Callahan, Michael Stupak