Patents by Inventor Thomas T. Calby

Thomas T. Calby 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).

  • Patent number: D318981
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: August 13, 1991
    Inventor: Thomas T. Calby