US PATENT SUBCLASS 564 / 318
.~.~.~.~.~.~ Processes


Current as of: June, 1999
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564 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) {37}
305  DF  .~.~ Benzene ring containing {24}
315  DF  .~.~.~ Two aryl rings or ring systems bonded directly to the same carbon {7}
316  DF  .~.~.~.~ Amino nitrogen attached to the carbon by an acyclic carbon or chain {3}
317  DF  .~.~.~.~.~ Oxygen or sulfur is bonded directly to the carbon and is part of the chain {1}
318.~.~.~.~.~.~ Processes


DEFINITION

Classification: 564/318

(under subclass 317) Processes for the preparation, purification, separation or recovery of compounds classified in that subclass.