Patents by Inventor Michael J. Derem

Michael J. Derem 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).

  • Bidirectional radio frequency amplifier with receiver protection
    Patent number: 4054837
    Abstract: A bidirectional radio frequency amplifier which includes a power amplifier and a receiver amplifier connected to a common antenna. A pair of parallel diodes coupled across the input of the receiver amplifier provides a high impedance path for a received signal and a low impedance path during transmission thereby eliminating the need for mechanical or semiconductor switching.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: October 18, 1977
    Inventors: Eugene B. Hibbs, Jr., Michael J. Derem