Patents by Inventor Lawrence R. Wood

Lawrence R. Wood 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).

  • Earthquake indicator
    Patent number: 4484186
    Abstract: A novelty for apparently indicating earthquakes, including a circular base marked with concentric circles on its upper side defining different earthquake intensities, a frame upon the base supporting a freely depending electrical contact through a supported circular contact so that in case the device is tilted, the contacts touch and thus close a circuit to a warning alarm.
    Type: Grant
    Filed: November 20, 1981
    Date of Patent: November 20, 1984
    Inventors: Lawrence R. Wood, George Spector