Patents by Inventor Jack E. Guth

Jack E. Guth 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).

  • Photo-tide level recorder
    Patent number: 4268839
    Abstract: A tide level recorder records tide elevations utilizing a free floating graduated rod-staff, against a fixed index mark, simultaneous with a chronometer reading. The free floating graduated rod-staff eliminates mechanical errors evident in existing tide level recorders with counter weights and springs.
    Type: Grant
    Filed: February 1, 1980
    Date of Patent: May 19, 1981
    Inventor: Jack E. Guth