Patents by Inventor Gregory Phillip Gruff

Gregory Phillip Gruff 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).

  • Sealed-cell waterfall display unit
    Patent number: 6311898
    Abstract: A sealed-cell waterfall display unit comprises a closed cell having front and back walls (20 & 22), side walls (24 & 26), and top and bottom panels (28 & 30); a reservoir for water in the top of the cell (32); a reservoir for water in the bottom of the cell (34); a pump (46) for conveying the water in the lower reservoir (34) to the upper reservoir (32), whereby the water overflows the upper reservoir (32) and flows down the front wall (20) in a waterfall fashion; and indentures (40) in the front wall (20) for producing a rippling effect in the flowing water.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: November 6, 2001
    Inventor: Gregory Phillip Gruff