US PATENT SUBCLASS 117 / 224
.~.~ Including pressurized crystallization means (e.g., hydrothermal)

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

200  DF  APPARATUS {4}
206  DF  .~ For crystallization from liquid or supercritical state {5}
224.~.~ Including pressurized crystallization means (e.g., hydrothermal)

DEFINITION

Classification: 117/224

Including pressurized crystallization means (e.g.,

hydrothermal):

(under subclass 206) Subject matter including means for providing or containing pressure greater than one atmosphere in the crystallization chamber during growth.

SEE OR SEARCH THIS CLASS, SUBCLASS:

71+, and 73+, for corresponding processes.

SEE OR SEARCH CLASS

425, Plastic Article or Earthenware Shaping or Treating: Apparatus,

77, for ultra-high-pressure apparatus.

CROSS-REFERENCE ART COLLECTIONS Note. Where there is an IPC subclass (or EPO-modified IPC subclass) which substantially encompasses the subject matter of an art collection, even though it may encompass other subject matter as well, it is noted in brackets, [].