Patents by Inventor Stephen E. Shotthafer

Stephen E. Shotthafer 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).

  • Small part sorting tray
    Patent number: 5117982
    Abstract: The invention is a parts sorting tray in which small parts of any similar nature may be isolated and dumped into individual containers after they have been separated into four (or more) sorting chutes; the tray, to be known as "Quick Sort" uses only gravity to function, and can be easily cast from a flexible plastic material such as polyethylene.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: June 2, 1992
    Inventors: Daniel S. Shotthafer, Stephen E. Shotthafer