Patents by Inventor Stephen B. Butler

Stephen B. Butler 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).

  • Tally cell circuit
    Patent number: 4607176
    Abstract: A tally cell circuit for counting the number of logical ones in an input signal utilizing a parallel-series combination of four CMOS field-effect transistors. The number of input ones in the input are expressed in a binary code at the output of the tally cell circuit.
    Type: Grant
    Filed: August 22, 1984
    Date of Patent: August 19, 1986
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: James L. Burrows, Stephen B. Butler