Patents by Inventor Qassim A. Al-Qafas

Qassim A. Al-Qafas 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).

  • Irrigation device
    Patent number: 7506473
    Abstract: An irrigation device for delivering water to the roots of a plant include an elongated mass of capillary material bound together by an impermeable sheath with a pair of cone shaped ends. A sponge like filter covers an upper one of the cone shaped ends and a second porous filter covers the opposite end. A plurality of impermeable tapered rings are provided for blocking off one or more portions of the capillary material to prevent water from flowing through those portions.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: March 24, 2009
    Inventor: Qassim A. Al-Qafas
  • IRRIGATION DEVICE
    Publication number: 20080184620
    Abstract: An irrigation device for delivering water to the roots of a plant include an elongated mass of capillary material bound together by an impermeable sheath with a pair of cone shaped ends. A sponge like filter covers an upper one of the cone shaped ends and a second porous filter covers the opposite end. A plurality of impermeable tapered rings are provided for blocking off one or more portions of the capillary material to prevent water from flowing through those portions.
    Type: Application
    Filed: February 7, 2007
    Publication date: August 7, 2008
    Inventor: Qassim A. Al-Qafas