US PATENT SUBCLASS 504 / 150
.~ Aquatic plant regulator (e.g., algicides, etc.)

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}
150.~ Aquatic plant regulator (e.g., algicides, etc.) {7}
151  DF  .~.~> Inorganic active ingredient containing
152  DF  .~.~> Heavy metal or aluminum containing active ingredient
153  DF  .~.~> Boron, silicon, or phosphorus containing active ingredient wherein the boron, silicon, or phosphorus is other than solely as part of an inorganic ion in an addition salt
154  DF  .~.~> Hetero ring containing active ingredient {1}
157  DF  .~.~> Active ingredient contains -C(=X)X-, wherein X's are the same or diverse chalcogens (e.g., carbamates, thiocarbamates, carboxylic acids, etc.)
158  DF  .~.~> Active ingredient contains nitrogen, other than as nitro or nitroso, wherein the nitrogen is attached directly or indirectly to carbon by nonionic bonding {2}
161  DF  .~.~> Active ingredient contains a ketone, aldehyde, ether, or hydroxy group, wherein the H of the hydroxy group may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal

DEFINITION

Classification: 504/150

Aquatic plant regulator (e.g., algicides, etc.):

(under subclass 116) Compositions which are designed or intended for positively or negatively influencing the life span of aquatic plants.

(1) Note. Algicides are included herein.

(2) Note. Patents disclosing the treatment of slime are not included herein unless algae is specifically disclosed to be a component of the slime.

(3) Note. Compositions intended to be applied to a surface for the prevention or inhibition of algae growth thereon, e.g., antifouling marine coating compositions, are not included herein, but are classified in the appropriate composition class and cross-referenced here if necessary.

SEE OR SEARCH CLASS

47, Plant Husbandry,

1.4, for algae culture and subclass 62 for process of fostering plant growth in a nutrient solution.

106, Compositions: Coating or Plastic, 15.05+, for antifouling coating compositions.

162, Paper Making and Fiber Liberation,

161, for biocidal processes and products for slime control in paper making.

210, Liquid Purification or Separation,

601+, especially 636, 753+, and 764 processes for destroying micro-organisms in a liquid medium which are more than the mere addition of a compound or composition to said liquid.

435, Chemistry: Molecular Biology and Microbiology, particularly

257.1+, for subject matter directed to a composition having utility as an algal culture medium (i.e., media for maintenance, growth, production, etc.) or a technique for preparing or using the same.