Patents by Inventor Philip A. Greubel

Philip A. Greubel 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).

  • Chemical treatment drip irrigation device
    Patent number: 5769318
    Abstract: A chemical treatment device for delivering nutrient and plant-health chemicals to plants whose water source is from a drip irrigation system. The system includes a housing within which a chemical treatment tablet can be disposed, with the housing having an inlet for a water source upstream of a site of disposition of the tablet and connectible to a drip irrigation water source, and a water outlet downstream from the site of disposition of the tablet. The invention places a chemical treatment tablet in intimate association with water flow from the drip irrigation system to thereby accomplish simultaneous irrigation and chemical treatment of the plants.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: June 23, 1998
    Inventor: Philip A. Greubel
  • Hose guide
    Patent number: D368515
    Type: Grant
    Filed: January 10, 1995
    Date of Patent: April 2, 1996
    Inventor: Philip A. Greubel