US PATENT SUBCLASS 516 / 21
.~.~ Discontinuous phase primarily inorganic liquid (e.g., water-in-oil emulsion, w/o)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


516 /   HD   COLLOID SYSTEMS AND WETTING AGENTS; SUBCOMBINATIONS THEREOF; PROCESSES OF

9  DF  CONTINUOUS LIQUID OR SUPERCRITICAL PHASE: COLLOID SYSTEMS; COMPOSITIONS CONTAINING AN AGENT FOR MAKING OR STABILIZING COLLOID SYSTEMS; PROCESSES OF MAKING OR STABILIZING COLLOID SYSTEMS; PROCESSES OF PREPARING THE COMPOSITIONS (E.G., THICKENING AGENT; PROTECTIVE COLLOID AGENT; COMPOSITION CONTAINING AN EMULSIFYING AGENT WITH NO DISPERSANT* DISCLOSED; ORGANIC LIQUID EMULSIFIED IN ANHYDROUS HF) {5}
20  DF  .~ Primarily organic continuous liquid phase (e.g., organic liquid emulsified in an organic liquid) {2}
21.~.~ Discontinuous phase primarily inorganic liquid (e.g., water-in-oil emulsion, w/o) {6}
22  DF  .~.~.~> Three or more phases (e.g., w/o emulsion also containing solid particle suspension)
23  DF  .~.~.~> The agent contains organic compound containing silicon
24  DF  .~.~.~> The agent contains organic compound containing phosphorus (e.g., lecithin)
25  DF  .~.~.~> The agent contains organic compound containing sulfoxy* {1}
27  DF  .~.~.~> The agent contains organic compound containing nitrogen, except if present solely as NH4+
28  DF  .~.~.~> The agent contains organic compound containing oxygen {2}

DEFINITION

Classification: 516/21

Discontinuous phase primarily inorganic liquid (e.g., water-in-oil emulsion, w/o):

(under subclass 20) Subject matter in which the colloid system contains a primarily organic* continuous liquid phase with a discontinuous primarily inorganic* liquid, such as water-in-oil emulsion.

(1) Note. "Primarily inorganic*" means that 50% or more of the discontinuous liquid phase is inorganic*, by weight, volume, molecule, or atom.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9, for colloid systems based on continuous liquid phase (e.g., emulsions, suspensions, or dispersions) in which it is unknown whether the continuous liquid phase is aqueous or organic*.

10+, for colloid systems of continuous liquid phase and a discontinuous gas or vapor phase, i.e., foam.

20, for oil-in-oil emulsions, and other discontinuous organic* liquid phase dispersed in continuous organic* liquid phase.

31+, for colloid systems in which the continuous liquid phase is primarily organic* and the discontinuous phase is primarily solid or semisolid material* (e.g., suspensions or dispersions). 32, for colloid systems in which the continuous liquid phase is primarily organic* and the discontinuous phase is primarily solid or semisolid material* which is primarily elemental carbon, such as graphite or diamond dispersed or suspended in oil or other primarily organic* continuous liquid phase.

38+, for colloid systems (e.g., emulsions, suspensions, or dispersions) in which the continuous liquid phase is aqueous and the discontinuous phase is primarily bituminous, coal, or carbon.

53+, for colloid systems (e.g., emulsions) in which the continuous liquid phase is aqueous and the discontinuous phase is primarily organic* liquid.

77+, for colloid systems (e.g., suspensions, or dispersions) in which the continuous liquid phase is aqueous and the discontinuous phase is primarily nonbituminous solid.

901, for a collection of art related to colloid systems of substantially pure carbon, such as graphite, diamond, carbon black, lamp black, fullerenes.

905+, for a collection of art under the class definition which discloses a per se composition containing a colloid system making or stabilizing agent* (e.g., foaming, emulsifying, dispersing, gelling), i.e., a composition containing said agent* and lacking both dispersant* and dispersand*.

SEE OR SEARCH CLASS

44, Fuel and Related Compositions,

301+, for liquid fuels comprising an emulsion, such as water-gasoline emulsions or microemulsions.

60, Power Plants,

39.464, for reaction motor having means to produce combustion products wherein the fuel may be a solid, slurry, emulsion, dispersion, or suspension.

73, Measuring and Testing, 53.01+, for liquid analysis or analysis of the suspension of solids in a liquid (particularly subclasses 61.44+ for determining content or effect of a constituent of a mixture of plural liquids (e.g., multiphase liquid)).

106, Compositions: Coating or Plastic, appropriate subclasses for coating or plastic compositions, and materials or ingredients used in the making of coating or plastic compositions, which may be emulsions, dispersions, suspensions, which are not elsewhere classified.

138, Pipes and Tubular Conduits. See

40+, for some devices disclosed for the purpose of forming a mixture or emulsion of a plurality of fluids but in which the claims are limited to the structure of the conduit and the flow restrictor.

210, Liquid Purification or Separation,

634+, for liquid/liquid solvent or colloid dispersion extraction.

252, Compositions, for all those compositions for which there is no provision elsewhere in the USPCS; including those compositions (or appropriate methods) which are claimed as specifically intended for a special use or function, but which, if only generically claimed, would be proper for Class 516, provided that subject matter is hierarchically superior within Class 252. See

610+, for fire retarding compositions in the form of dispersion or colloid system, subclasses 8.57, 8.61+, 8.81+, and 8.91+ for various specialized compositions for leather, fur, or textile treating.

366, Agitating,

108+, for apparatus wherein the agitation is effected by vibratory device, subclasses 176.1+ for apparatus for forming suspensions or emulsions by agitation, cross-reference art collection 605 for mixing apparatus for stirring of paint. Processes which form colloid systems, such as emulsifying or foaming, are proper for compositions classes for the claimed specified use compositions, and for Class 516 for non-specified use compositions (generic).

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing, 41+, for processes of storage of liquid which may involve use of a colloid system such as an emulsion or foam spread on the surface of the liquid.

424, Drug, Bio-Affecting and Body Treating Compositions,

455, for a capsule which contains an emulsion, dispersion, or solution, subclass 70.19 for compositions which have topical nontherapeutic utility for treating the hair or scalp of the living body (e.g. grooming or adorning aids, tonics, rinses) which contain two or more surfactants (i.e. compounds that lower the surface or interfacial tension, including detergents, foaming or wetting agents, emulsifiers, solubilizers, or dispersants) which are either designated in the claims or are art recognized as such, subclasses 278.1+ for a claimed particular emulsifier for a nonspecific immunoeffector.

426, Food or Edible Material: Processes, Compositions, and Products,

531+, for per se products or processes of preparing or treating compositions involving chemical reaction by addition, combining diverse food material, or permanent additive (particularly subclasses 602+ for an aqueous emulsion in a composition having fat or oil basic ingredient other than butter in emulsion form, subclass 654 for stabilizing or preserving agent or emulsifier other than organophosphatide), subclass 519 for processes including mixing or agitating, e.g., homogenizing.

430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof,

113, for image developing composition or product which is a multiple phase liquid carrier medium, such as an emulsion, for electric or magnetic imagery, subclasses 377+ for emulsifier in a coupling compound with silver compound sensitizer in a process of color imaging using a radiation sensitive composition, subclass 493 for surfactant or emulsifier processing additive in a developer for nonradiation sensitive image processing compositions or process of making.

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 FOR 184 for method of using gentically engineered cells other than hybrid or fused cells for oil spill cleanup.

504, Plant Protecting and Regulating Compositions, appropriate subclasses for a plant stimulating or eradicating composition; including colloid systems, wetting agents, subcombination compositions therefor, or appropriate methods which are claimed as specifically intended for such use.

507, Earth Boring, Well Treating, and Oil Field Chemistry, 90, for compositions for addition to petroleum oils during transportation through conduits to prevent fouling or clogging of the conduits due to components of the petroleum oils precipitating out during the transportation (e.g.,

suspending agents, antiflocculants), subclasses 100+ for earth boring compositions which may contain colloid systems (e.g., dispersions, suspensions, emulsions) or wetting agents, subclasses 200+ for well treating compositions which may contain colloid systems (e.g., dispersions, suspensions, emulsions) or wetting agents.

508, Solid Antifriction Devices, Material Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions, appropriate subclasses for claimed or solely disclosed lubricants composed of water-in-oil emulsions. This class is organized based upon the chemical constituents or chemical reactants of the composition or device; no subclass specifically provides for colloid systems or wetting agents, therefore such subject matter would be placed based upon its constituents as though it were a solution or mixture having no colloid system characteristic.

510, Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions, appropriate subclasses for claimed or solely disclosed cleaning compositions for cleaning or removing foreign matter from solid surfaces which may be water-in-oil emulsions. Although various subclasses specifically provide for colloid systems or wetting agents, such subject matter may be placed based upon another criterion, such as its chemical constitution (i.e., as though it has no colloid system characteristic). Areas known to have documents related to emulsion colloid systems include:

133+, for composition for cleaning human skin (especially subclass 158 for cream, paste, or gel), subclasses 221+ for liquid, paste, or gel composition used in automatic dishwasher, subclass 242 for liquid composition (e.g., emulsion) for removing foreign matter from surface carrying a protective or ornamental coating, finish, or adhesively attached covering (e.g., from painted or papered wall, automobile body), subclasses 276+ for cleaning compositions for textile material (e.g., laundry detergent) (particularly subclass 280 for gel or liquid composition for cleaning pile fabric or upholstery (e.g., carpet, rug), subclass 336 for gel, cream, or paste, subclasses 337+ for liquid compositions (e.g., slurry) which may be colloid systems), subclasses 367+ for cleaning compositions with oxygen or halogen containing chemical bleach or oxidant component (particularly subclass 370 for liquid, paste, foam, or gel (e.g., slurry, aerosol composition or package)), subclasses 383+ for liquid, paste, or gel cleaning composition with halogen, nitrogen, oxygen, or phosphorus containing antiseptic or biocidal component, subclasses 395+ for cleaning composition with a scrubbing or scouring component (e.g., containing an abrasive, cream, paste, gel, gas-propelled, slurry), subclass 404 for cream or paste cleaning composition, subclasses 405+ for liquid cleaning compositions, especially for chemically specified surfactants (particularly subclass 417 for plural immiscible liquid phases (e.g., emulsion, oily and aqueous layers)),

subclasses 535 for surfactant compositions (other that raw soap) which are specialized for use in cleaning compositions together with other auxiliary components (particularly subclass 537 for liquid or paste).

514, Drug, Bio-Affecting and Body Treating Compositions,

772+, for compositions which contain a designated nonbioactive organic compound (e.g., emulsifying polymers, gelatin), cross-reference art collections 936-975 which pertain to specifically disclosed carrier systems, physical form, or specified nonbioactive ingredient (particularly cross-reference art collections 937+ for subject matter involving a composition in the form of a dispersion or emulsion).

520, Synthetic Resins or Natural Rubbers, appropriate subclasses for (1) synthetic resins, per se, or (2) resin containing compositions, the use or utility of which is not specifically provided for elsewhere. The subject matter of the Class 520 series is hierarchically superior to Class 516 for placement of ORs (original reference).

1, of Class 520 is the residual subclass for solid resin containing subject matter. See various subclasses in the 520 series of classes for aqueous or organic dispersions, latexes, or gels, of a polymer or natural or synthetic rubber, and methods of making or treating same.

524, Synthetic Resins or Natural Rubbers--Part of the Class 520 Series,

457+, for polymerizing an ethylenic monomer in the presence of a preformed SICP or solid polymer and in the presence of a nonreactive material so as to form an aqueous dispersion, latex, suspension, or emulsion therewith, or product thereof.