US PATENT SUBCLASS 585 / 641
.~.~ Halogen-containing

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

500  DF  UNSATURATED COMPOUND SYNTHESIS {14}
638  DF  .~ From nonhydrocarbon feed {2}
641.~.~ Halogen-containing {1}
642  DF  .~.~.~> Using acid, metal oxide, or salt catalyst

DEFINITION

Classification: 585/641

Halogen-containing:

(under subclass 638) Subject matter wherein a nonhydrocarbon feedstock molecule contains fluorine, chlorine, bromine, or iodine.