Patents by Inventor Vivian B. Warne

Vivian B. Warne 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).

  • Iron chelate compositions
    Patent number: 5152820
    Abstract: The composition contains iron EDDHA and for iron EDDHMA in an agriculturally-acceptable organic solvent, preferably ethylene glycol. The composition is used in treating iron deficiency in soils and can have an iron content of up to 40 or 50 g dm.sup.-3. The composition may also contain considerable amounts of water yet still to be stable at room temperature, the aqueous composition having a significantly reduced viscosity relative to the water-free composition. The iron chelate need not be dry when incorporated into the composition. It may also be synthesized in situ in the solvent of the composition.
    Type: Grant
    Filed: December 5, 1991
    Date of Patent: October 6, 1992
    Assignee: Phosyn plc.
    Inventors: John M. Dawson, Vivian B. Warne