US PATENT SUBCLASS 117 / 943
.~.~ Quartz (SiO2) {C30B 29/18}

Current as of: June, 1999
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117 /   HD   SINGLE-CRYSTAL, ORIENTED-CRYSTAL, AND EPITAXY GROWTH PROCESSES; NON-COATING APPARATUS THEREFOR

937  DF  INORGANIC CONTAINING SINGLE-CRYSTAL (E.G., COMPOUND, MIXTURE, COMPOSITE) {C30B 29/10} {10}
942  DF  .~ Silicon-oxygen bond containing (e.g., emerald, beryl, garnet, mica) {C30B 29/16} {1}
943.~.~ Quartz (SiO2) {C30B 29/18}

DEFINITION

Classification: 117/943

Quartz (SiO2) [C30B 29/18]:

A collection of art under the art collection 942 disclosing growing a single-crystal* comprising quartz (SiO2).

(1) Note. A complete search would include subclass 72. Cross-referencing therewith is precluded as unnecessarily duplicative.

SEE OR SEARCH THIS CLASS, SUBCLASS:

72, for processes of growing quartz single-crystal* by a hydrothermal method.

224, for apparatus providing pressure for single-crystal* growth; e.g., hydrothermal methods.

SEE OR SEARCH CLASS

501, Compositions: Ceramic, 86, for synthetic precious stones and methods of making same when not proper for Class 117.