Patents by Inventor John R. Steponick

John R. Steponick 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).

  • Temperature variable attenuator
    Patent number: 5332981
    Abstract: An absorptive temperature variable microwave attenuator is produced utilizing at least two different thick film resistors. The temperature coefficients of the resistors are different and are selected so that the attenuator changes at a controlled rate with changes in temperature while the impedance of the attenuator remains substantially constant. Substantially any temperature coefficient of resistance can be created for each resistor by properly selecting and mixing different inks when forming the thick film resistors. Furthermore, attenuators can be created having either a negative temperature coefficient of attenuation or a positive temperature coefficient of attenuation.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: July 26, 1994
    Assignee: EMC Technology, Inc.
    Inventors: Joseph B. Mazzochette, John R. Steponick