Patents by Inventor Peter R. Wrigley

Peter R. Wrigley 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).

  • Adjuvant composition for chemicals used in agriculture
    Patent number: 7314848
    Abstract: According to the invention an adjuvant for use with a chemical used in agriculture is provided comprising: (a) not in excess of about 75% by weight of one or more lipophilic solvents; (b) not in excess of about 50% by weight of one or more plant nutrients (e.g. ammonium salts of inorganic anions); and (c) not in excess of about 50% of a mixture of one or more cationic emulsifiers including surfactants which exhibit cationic characteristic in acidic conditions.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: January 1, 2008
    Assignee: Victorian Chemicals International Pty Ltd.
    Inventors: Robert W. Killick, Andrew R. Killick, Peter W. Jones, Peter R. Wrigley, John D. Morrison
  • Agrochemical composition
    Patent number: 6589913
    Abstract: An agrochemical composition with enhanced activity and phase stability is provided comprising: a) glyphosate present in an amount which is not in excess of about 25% b) one or more lipophilic solvents present in an amount which is not in excess of about 80% c) one or more lipophobic plant nutrients present in an amount which is not in excess of about 50% d) one or more oil soluble bases present in an amount which is not in excess of about 50% wherein the oil soluble base forms a lipophilic solvent soluble complex with glyphosate which is capable of coupling or assisting coupling of the lipophobic plant nutrients with the lipophilic solvents.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: July 8, 2003
    Assignee: Victorian Chemicals International Pty Ltd.
    Inventors: Robert W. Killick, Andrew R. Killick, Peter W. Jones, Peter R. Wrigley, John D. Morrison
  • Herbicide, crop desiccant and defolliant adjuvants comprising an unsaturated fatty acid ethyl ester and a non-ionic emulsifier
    Patent number: 5631205
    Abstract: An adjuvant composition for use with a herbicide, crop desiccant, or defoliant consisting essentially of an ethyl ester of a fatty acid with an unsaturation level of at least 40% and a non-ionic ionic emulsifier.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: May 20, 1997
    Assignees: Victorian Chemical International Pty. Ltd., Wilbur-Ellis Company
    Inventors: Robert W. Killick, Peter R. Wrigley, Peter W. Jones, David T. Schulteis