Patents by Inventor Michael Paul Walker

Michael Paul Walker 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).

  • Pyridinyl amides and imides for use as fungicides
    Patent number: 7074742
    Abstract: Compounds of Formula (I), their N-oxides and agriculturally suitable salts are disclosed which are useful as fungicides formula (I), (II) wherein A is a substituted pyridinyl ring; B is a substituted pyridinyl ring; W is C=L or SOn is O or S; R1 and R2 are each independently H; or C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl or C3-C6 cycloalkyl, each optionally substituted; R3 is H; or C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl or C3-C6 cycloalkyl, C2-C6 alkylcarbonyl, C2-C6 alkoxycarbonyl, C2-C6 alkylaminocarbonyl or C3-C8 dialkylaminocarbonyl; R4 is C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl or C3-C6 cycloalkyl, each optionally substituted; X is O or S; and n is 1 or 2; provided that when W is C?O and R1, R2 and R3 are H; then B is other than 4-trifluoromethyl-3-pyridinyl, 2-chloro-4-pyridinyl and 2,6-dihalo-4-pyridinyl.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: July 11, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Timothy Donald Neubert, David Walter Piotrowski, Michael Paul Walker
  • Pyridinyl amides and imides for use as fungicides
    Publication number: 20040044040
    Abstract: Compounds of Formula (I), their N-oxides and agriculturally suitable salts are disclosed which are useful as fungicides formula (I), (II) wherein A is a substituted pyridinyl ring; B is a substituted pyridinyl ring; W is C═L or SOn is O or S; R1 and R2 are each independently H; or C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl or C3-C6 cycloalkyl, each optionally substituted; R3 is H; or C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl or C3-C6 cycloalkyl, C2-C6 alkylcarbonyl, C2-C6 alkoxycarbonyl, C2-C6 alkylaminocarbonyl or C3-C8 dialkylaminocarbonyl; R4 is C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl or C3-C6 cycloalkyl, each optionally substituted; X is O or S; and n is 1 or 2; provided that when W is C═O and R1, R2 and R3 are H; then B is other than 4-trifluoromethyl-3-pyridinyl, 2-chloro-4-pyridinyl and 2,6-dihalo-4-pyridinyl.
    Type: Application
    Filed: March 12, 2003
    Publication date: March 4, 2004
    Inventors: Timothy Donald Neubert, David Walter Piotrowski, Michael Paul Walker