Patents by Inventor Charles B. Dreyer

Charles B. Dreyer 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).

  • Management action terminal
    Patent number: D262794
    Type: Grant
    Filed: July 20, 1979
    Date of Patent: January 26, 1982
    Assignee: Transaction Control Industries
    Inventors: Charles B. Dreyer, John R. Frassanito