Patents by Inventor Andrew C. G. Gray

Andrew C. G. Gray 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).

  • Biocidal azophenyl compositions
    Patent number: 5387580
    Abstract: Biocidal compositions comprising novel azophenyl compounds which are suitable as fungicidal agents are provided which comprise a carrier and, as active ingredient, a compound of the general formulaR--N.dbd.NX (I)or N-oxides thereof, where R represents a substituted phenyl group, at least one substituent thereof being a group of general formula --NR.sup.1 COR.sup.2, where R.sup.1 represents a hydrogen atom or an alkyl group, and R.sup.2 represents a hydrogen atom or an optionally substituted alkyl, alkoxy, alkenyl, alkenyloxy, phenyl or phenoxy group; and X represents a cyano group, a group --COOH or a salt, ester or amido derivative thereof.
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: February 7, 1995
    Assignee: Shell Research Limited
    Inventors: William W. Wood, Thomas W. Naisby, Andrew C. G. Gray
  • Bicyclic or tricyclic biocidal compounds
    Patent number: 5376679
    Abstract: Compounds of the general formula ##STR1## where R.sup.2 and R.sup.3 together, or R.sup.3 and R.sup.4 together, represent an optionally substituted hydrocarbyloxy chain; the ring is optionally substituted at any or each of the remaining sites R.sup.5, R.sup.6 and R.sup.2 or R.sup.4 : n represents 0 or 1; and X represents a cyano group, a group --COOH or a salt, ester or amido derivative thereof; are biocidal, showing activity against fungi, yeast, bacteria and nematodes. Some such compounds, and intermediates therefore, are novel.
    Type: Grant
    Filed: January 12, 1994
    Date of Patent: December 27, 1994
    Assignee: Shell Internationale Research Maatschappij B.V.
    Inventors: Michael Pearson, Andrew C. G. Gray, Thomas W. Naisby, William W. Wood, Susan J. Turner, Tarnia M. Machin
  • Biocidal azophenyl compounds
    Patent number: 5089486
    Abstract: Compounds of the general formulaR--N.dbd.NX (I)or N-oxides thereof, where R represents on amidophenyl group, and X represents a cyano group, a group --COOH or a salt, ester or amino derivative thereof; are fungicidal.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: February 18, 1992
    Assignee: Shell Research Limited
    Inventors: William W. Wood, Thomas W. Naisby, Andrew C. G. Gray
  • Fungicidal phenyl azoxime compositions
    Patent number: 5084448
    Abstract: Novel compounds of the general formula ##STR1## where R represents an optionally substituted aryl or heteroaryl group; X represents a hydrogen atom or an amino group or an optionally substituted alkyl, aryl or heteroaryl group; and Z represents a hydrogen atom or alkanoyl group; are fungicidal.
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: January 28, 1992
    Assignee: Shell Research Limited
    Inventors: Andrew C. G. Gray, William W. Wood, Thomas W. Naisby
  • Fungicides
    Patent number: 4399149
    Abstract: Use as agricultural fungicides of N-acyl-N-hydroxyalkanoic acid compounds of the formula ##STR1## and salts thereof, wherein each of the symbols has an assigned meaning.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: August 16, 1983
    Assignee: Shell Oil Company
    Inventors: Pieter Ten Haken, Thomas W. Naisby, Andrew C. G. Gray