Patents by Inventor Joyce Ulin

Joyce Ulin 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).

  • Sprinkler apparatus
    Patent number: 6390391
    Abstract: A sprinkler apparatus for transferring water from a supply hose to a ground surface. The sprinkler apparatus includes a conical-shaped main body member with a plurality of apertures around the outer surface for watering close to the sprinkler, and a retractable spray nozzle on the top for covering the area surrounding the sprinkler.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: May 21, 2002
    Inventor: Joyce Ulin