US PATENT SUBCLASS 585 / 504
.~.~ With specified procedure for recycle of nonhydrocarbon

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

500  DF  UNSATURATED COMPOUND SYNTHESIS {14}
502  DF  .~ By addition of entire unsaturated molecules, e.g., polymerization, etc. {8}
504.~.~ With specified procedure for recycle of nonhydrocarbon

DEFINITION

Classification: 585/504

With specified procedure for recycle of nonhydrocarbon:

(under subclass 502) Subject matter wherein a procedure is recited for getting catalyst or other nonhydrocarbon material which has been removed from a reaction back into the reaction, which procedure goes beyond mere nominal "recycling", "regenerating", etc.