Patents by Inventor Christopher M. Rowen

Christopher M. Rowen 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).

  • Disposable electronic watch
    Patent number: 4551028
    Abstract: An electronic watch of relatively few parts and consequent inexpensive construction employing a liquid crystal display (LCD), an integrated circuit chip and a watch battery. The watch is electrically dormant until activated by means of a pull tab. Adjustments are made through holes in the watch case.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: November 5, 1985
    Inventors: John B. Rowen, Christopher M. Rowen, Charles Janusis