US PATENT SUBCLASS 205 / 789
.~ For ion concentration (e.g., ion activity, pKa, etc.)

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

Internet Version by PATENTEC © 1999      Terms of Use


205 /   HD   ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS

775  DF  ELECTROLYTIC ANALYSIS OR TESTING (PROCESS AND ELECTROLYTE COMPOSITION) {19}
789.~ For ion concentration (e.g., ion activity, pKa, etc.) {1}
789.5  DF  .~.~> Cations

DEFINITION

Classification: 205/789

For ion concentration (e.g., ion activity, pKa, etc.):

(under subclass 775) Subject matter in which a material is analyzed or tested for ion concentration (e.g., ion activity, pKa, etc.).

(1) Note. The electrolytic analysis or testing of a material for the mere presence of one or more ionic species in solution is insufficient for placement in this subclass or the subclass indented hereunder, which are intended to provide for determination of at least the relative quantity of ions in solution.

SEE OR SEARCH CLASS

204, Chemistry: Electrical and Wave Energy,

416+, for electrolytic apparatus for analysis and testing

using an ion sensitive electrode.