Patents by Inventor Thomas G. Wahl

Thomas G. Wahl 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).

  • Traffic signaling device
    Patent number: 5117765
    Abstract: A traffic signaling device is provided which enables a roadway work site flagman to selectably control the traffic instructions displayed to motorists traveling in opposite directions through the use of multiple louver sets which may be selectably interposed to change the message presented to motorists.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: June 2, 1992
    Inventor: Thomas G. Wahl