US PATENT SUBCLASS 516 / 89
.~.~.~.~ The metal present in the greatest amount is yttrium, scandium, or rare earth (e.g., hydrated ceric dioxide)

Current as of: June, 1999
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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}
77  DF  .~ Aqueous continuous liquid phase and discontinuous phase primarily solid (e.g., water based suspensions, dispersions, or certain sols*, of natural or synthetic ester-wax, beeswax, carnauba wax; or latex dispersion) {1}
78  DF  .~.~ The solid is primarily inorganic material (e.g., mercurous halide) {4}
88  DF  .~.~.~ The material primarily contains compound containing both metal and oxygen (e.g., silver nitrate) {6}
89.~.~.~.~ The metal present in the greatest amount is yttrium, scandium, or rare earth (e.g., hydrated ceric dioxide)

DEFINITION

Classification: 516/89

The metal present in the greatest amount is yttrium, scandium, or rare earth (e.g., hydrated ceric dioxide):

(under subclass 88) Subject matter in which the metal present in the greatest amount in the total of all compounds containing both metal and oxygen is yttrium, scandium, or rare earth, such as, dispersion of hydrated ceric dioxide.

SEE OR SEARCH THIS CLASS, SUBCLASS:

33+, for colloid systems in which the continuous liquid phase is primarily organic* and the discontinuous phase is primarily inorganic* solid or semisolid material*.

SEE OR SEARCH CLASS

505, Superconductor Technology: Apparatus, Material, Process, for subject matter involving (a) superconductor technology above 30 K and (b) art collections involving superconductor technology; including apparatus, devices, materials, and processes involving such technology,

165, for system, device, or component utilizing suspension of superconducting particulate material in liquid (e.g., seal, pump, etc.).