Patents by Inventor Leon E. Stoddard

Leon E. Stoddard 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).

  • Variable pulse width circuit
    Patent number: 4099072
    Abstract: A variable pulse width circuit comprising a semiconductor switch and a circuit of a pair of capacitors in series with the switch. The capacitors have a rectifier joining one side of said capacitors. The capacitors are in series with the load and are connected to a charging circuit. Two current paths are provided to enable charge of such capacitors under conditions where wide and narrow pulse widths of load current are obtained. Also obtained are higher and lower amplitudes of voltage pulses from the charging circuit.
    Type: Grant
    Filed: February 8, 1977
    Date of Patent: July 4, 1978
    Assignee: Hughes Aircraft Company
    Inventors: J. Spencer Lee, Leon E. Stoddard