US PATENT SUBCLASS 504 / 166
.~.~ Hetero ring containing active ingredient

Current as of: June, 1999
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504 /   HD   PLANT PROTECTING AND REGULATING COMPOSITIONS

116  DF  PLANT GROWTH REGULATING COMPOSITIONS (E.G., HERBICIDES, ETC.) {9}
162  DF  .~ Abscission agent, defoliant, or desiccant {6}
166.~.~ Hetero ring containing active ingredient {2}
167  DF  .~.~.~> Hetero ring is six-membered including nitrogen {1}
169  DF  .~.~.~> Hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen {1}

DEFINITION

Classification: 504/166

Hetero ring containing active ingredient:

(under subclass 162) Compositions wherein the active abscission, defoliant, or desiccant agent contains a hetero ring.