Patents by Inventor Sandra J. Davies

Sandra J. Davies 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).

  • Process for hydroponic cultivation of plants
    Patent number: 6295759
    Abstract: In a process for hydroponic cultivation of plants an irrigation solution containing water and at least one nutrient is circulated through a main loop at a first point where a disinfectant is added to the irrigation solution. At a second point at least one nutrient is added to the irrigation solution. At a third point the plants are supplied with the irrigation solution, and at a fourth point the irrigation solution drained of the plants is collected. The main loop is provided with one or more sub-loops through which the irrigation solution is recirculated.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: October 2, 2001
    Assignee: Solvay (Societe Anonyme)
    Inventors: Joseph W. G. Malone, Sandra J. Davies, Robert A. Simms