US PATENT SUBCLASS 585 / 368
.~.~.~.~ With nonmetal element or compound

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

350  DF  ALICYCLIC COMPOUND SYNTHESIS {11}
365  DF  .~ From nonring hydrocarbon {1}
366  DF  .~.~ Alkadiene {2}
367  DF  .~.~.~ Using refractory-group metal-containing catalyst {1}
368.~.~.~.~ With nonmetal element or compound

DEFINITION

Classification: 585/368

With nonmetal element or compound:

(under subclass 367) Subject matter employing, in addition to the refractory metal component, an element or compound which does not contain a metal atom.

(1) Note. The nonmetal element or compound must be clearly an entity separate from the metal-containing material, that is, it is not part of a "complex" with a metal-containing "compound".

(2) Note. The nonmetal element or compound need not have a clearly catalytic function, but may be described as a solvent, diluent, etc.