US PATENT SUBCLASS 504 / 187
.~ Inorganic active ingredient which contains boron, silicon, phosphorus, heavy metal, or aluminum

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}
187.~ Inorganic active ingredient which contains boron, silicon, phosphorus, heavy metal, or aluminum

DEFINITION

Classification: 504/187

Inorganic active ingredient which contains boron, silicon, phosphorus, heavy metal, or aluminum:

(under subclass 116) Compositions wherein an inorganic active ingredient contains elemental boron, silicon, phosphorus, aluminum, or metal having a specific gravity greater than four, or an inorganic compound of one of these elements.