US PATENT SUBCLASS 562 / 592
.~.~.~.~ Preparation by hydrogenation

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
400  DF  .~ Carboxylic acids and salts thereof {14}
512  DF  .~.~ Acyclic {14}
590  DF  .~.~.~ Polycarboxylic {7}
592.~.~.~.~ Preparation by hydrogenation

DEFINITION

Classification: 562/592

Preparation by hydrogenation:

(under subclass 590) Processes wherein the acid is produced by introduction of hydrogen.