US PATENT SUBCLASS 205 / 775
ELECTROLYTIC ANALYSIS OR TESTING (PROCESS AND ELECTROLYTE COMPOSITION)

Current as of: June, 1999
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205 /   HD   ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS

775ELECTROLYTIC ANALYSIS OR TESTING (PROCESS AND ELECTROLYTE COMPOSITION) {19}
775.5  DF  .~> For corrosion {3}
777.5  DF  .~> Involving enzyme or micro-organism {1}
778.5  DF  .~> For halogen or halogen containing compound {3}
780.5  DF  .~> For nitrogen or nitrogen containing compound {1}
781.5  DF  .~> For alkali metal, alkaline earth metal, or compound thereof
782  DF  .~> For oxygen or oxygen containing compound (except water) {4}
786.5  DF  .~> For sulfur or sulfur containing compound
787  DF  .~> For organic compound
787.5  DF  .~> For pH
788  DF  .~> For water (e.g., moisture, etc.)
788.5  DF  .~> Including titration
789  DF  .~> For ion concentration (e.g., ion activity, pKa, etc.) {1}
790  DF  .~> For composition of metal or metal alloy
790.5  DF  .~> For properties of solid material (e.g., surface area, etc.) {2}
792  DF  .~> Of biological material (e.g., urine, etc.)
792.5  DF  .~> Using ion exchange resin
793  DF  .~> Using semipermeable membrane
793.5  DF  .~> Tracking chemical reactions {1}
794.5  DF  .~> Using electrode containing precious metal or free carbon

DEFINITION

Classification: 205/775

ELECTROLYTIC ANALYSIS OR TESTING (PROCESS AND ELECTROLYTE COMPOSITION):

(under the class definition) Subject matter involving an electrolytic method of analysis or testing, including electrolyte compositions for use therein.

(1) Note. Processes drawn to combinations of electrolytic analysis or testing with other electrolytic processes provided for above are placed in the appropriate above subclass or subclasses and cross-referenced in this section when desired. However, electrolytic processes carried out merely for the purpose of analysis or testing (e.g., stripping of a coating from a substrate by electrolysis merely to determine the bonding strength of the coating, etc.) are properly classified here.

(2) Note. Classification in this subclass and the subclasses indented hereunder is based on electrolytic analysis or testing to obtain a desired result. Therefore, analysis or testing of a sample for the presence or amount of a specific component is classified based on the specific component (when provided for) even if a test electrode only senses an intermediate second component to deduce the

presence of the specific component. Cross-referencing to any other appropriate subclass or subclasses which provide for the detection of the intermediate second component is merely discretionary.

SEE OR SEARCH CLASS

73, Measuring and Testing, as the residual class for processes and apparatus for measuring or testing, per se. See also the (3) Note in the class definition of Class 73 for additional loci of other measuring and testing processes and apparatus of different types.

204, Chemistry: Electrical and Wave Energy,

400+, for corresponding apparatus utilizing electrolytic action for analysis or testing. 324, Electricity: Measuring and Testing, for measuring, testing, or sensing, per se, to determine electrical properties by electrical means even though nonelectrical values may be derived from the electrical properties determined; especially

323+, for testing of underground formations by electrolytic methods (e.g., testing an oil well bore for water strata, etc.), subclasses 425+ for testing of an electrolyte to determine electrical properties thereof, and other appropriate subclasses for any other electrolytic-type testing, in general, which is combined with a significant electrical testing circuit or is unrelated to the subject matter of Class 205.

436, Chemistry: Analytical and Immunological Testing, for a qualitative or quantitative chemical analysis including (1) a step involving electrochemistry followed by another chemical reaction not involving electrochemistry or (2) a step which may alternatively involve either electrochemistry or another chemical reaction not involving electrochemistry.