US PATENT SUBCLASS 585 / 444
.~.~.~ Using metal oxide, sulfide, or salt

Current as of: June, 1999
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585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

400  DF  AROMATIC COMPOUND SYNTHESIS {15}
435  DF  .~ Having alkenyl moiety, e.g., styrene, etc. {4}
440  DF  .~.~ By dehydrogenation {4}
444.~.~.~ Using metal oxide, sulfide, or salt {1}
445  DF  .~.~.~.~> Cr-, Mo-, or W-containing

DEFINITION

Classification: 585/444

Using metal oxide, sulfide, or salt:

(under subclass 440) Subject matter wherein part or all of the synthesis takes place in the presence of an oxide, sulfide, or salt of a metal.