Patents by Inventor Henry John Orchard

Henry John Orchard 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).

  • Equalizer circuit
    Patent number: 4063187
    Abstract: A Bode equalizer which has as one active element thereof a high-gain, differential-input amplifier and which has as a second active element a variable negative resistance, the equalizer circuit being controlled by a resistance arrangement which effectively comprises a series-connected, fixed resistor and the variable negative resistance.
    Type: Grant
    Filed: December 4, 1975
    Date of Patent: December 13, 1977
    Assignee: GTE Automatic Electric Laboratories Incorporated
    Inventor: Henry John Orchard