US PATENT SUBCLASS 516 / 131
.~.~.~.~.~ The compound contains plural -C(=O)NHH where substitution may be made for the hydrogen

Current as of: June, 1999
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516 /   HD   COLLOID SYSTEMS AND WETTING AGENTS; SUBCOMBINATIONS THEREOF; PROCESSES OF

113  DF  COMPOSITIONS CONTAINING AN AGENT FOR BREAKING (RESOLVING) OR INHIBITING COLLOID SYSTEMS; PROCESSES OF BREAKING (RESOLVING) OR INHIBITING COLLOID SYSTEMS (E.G., GEL BREAKING OR INHIBITING, COAGULATING, FLOCCULATING); PROCESSES OF PREPARING THE COMPOSITIONS {3}
115  DF  .~ Continuous liquid phase colloid system and discontinuous gas or vapor phase (i.e., foam) {7}
128  DF  .~.~ The agent contains organic compound containing nitrogen, except if present solely as NH4+ {1}
129  DF  .~.~.~ The compound contains oxygen {1}
130  DF  .~.~.~.~ The compound contains -C(=O)NHH where substitution may be made for the hydrogen {1}
131.~.~.~.~.~ The compound contains plural -C(=O)NHH where substitution may be made for the hydrogen

DEFINITION

Classification: 516/131

The compound contains plural -C(=O)NHH where substitution may be made for the hydrogen:

(under subclass 130) Subject matter in which the organic* compound contains plural (two or more) -C(=O)NHH group where substitution may be made for the hydrogen.

SEE OR SEARCH THIS CLASS, SUBCLASS:

136, for similar subject matter related to breaking (resolving) or inhibiting of emulsions using an agent* which contains a solid material* which is only organic* or in which the nature of the material* is indeterminable.

137, for similar subject matter related to breaking (resolving) or inhibiting of emulsions using an agent* which contains a solid material*, in which the material* contains both an inorganic* material* and an organic* material*.

161+, for similar subject matter related to breaking (resolving) or inhibiting of aqueous-petroleum*, petroleum*-aqueous, aqueous-hydrocarbon, or hydrocarbon-aqueous emulsions (using an agent* which contains material* different from the primary components of both liquid phases as required by hierarchically superior subclass 139), and in which the agent* is other than solid surface functioning (as provided for in subclasses 136+), and is other than physically or chemically dissolving binding, or destroying or at least part of one liquid phase (other than the colloid system making or stabilizing agent*) (as provided for in subclass 140), and in which the agent* doesn't contain both an inorganic* material* and an organic* material* (as provided for in subclass 142).

SEE OR SEARCH CLASS

435, Chemistry: Molecular Biology and Microbiology,

262+, for processes in which preexisting material or compound, which may include a hazardous or toxic waste, present in a composition or material containing a preexisting material, is contacted with an enzyme or immobilized enzyme micro-organism or plant or animal cells to isolate or recover the preexisting material which is chemically unchanged by the process and the hazardous or toxic waste is destroyed (especially subclass 262.5 for processes wherein hazardous or toxic waste such as oil spill is destroyed or converted into an environmentally safe substance, subclass 266 for processes of using enzyme or microorganism to liberate, separate, or purify by treating gas, emulsion, or foam, subclasses 281+ for processes of recovering petroleum or shale oil), foreign art collection FOR184 for method of using genetically engineered cells other than hybrid or fused cells for oil spill cleanup.

935, Genetic Engineering: Recombinant DNA Technology, Hybrid or Fused Cell Technology, and Related Manipulations of Nucleic Acids,

59+, for methods of using of genetically engineered cells, e.g., oil spill cleanup which may involve emulsion or foam making or breaking.