Patents by Inventor Walter Simciak

Walter Simciak 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).

  • RF data exchange system
    Patent number: 4031513
    Abstract: An improved remote meter reading system is disclosed comprising apparatus for transmitting UHF AM interrogating signals from an interrogating mobile or central station to a remote transponder station, and apparatus for retransmitting UHF FM data signals from the energized transponder to the mobile or central interrogating station. The interrogating station further includes apparatus for validating that the UHF FM data signals received are in fact the UHF FM data signals actually sent by the remote transponder selected by the interrogating or central station.
    Type: Grant
    Filed: November 8, 1974
    Date of Patent: June 21, 1977
    Assignee: Northern Illinois Gas Company
    Inventor: Walter Simciak