US PATENT SUBCLASS 585 / 921
.~ Using recited apparatus structure

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

*  DD  APPARATUS CONSIDERATIONS {2}
921.~ Using recited apparatus structure {2}
922  DF  .~.~> Reactor fluid manipulating device {1}
924  DF  .~.~> Reactor shape or disposition {2}

DEFINITION

Classification: 585/921

Using recited apparatus structure:

Collection of documents (under unnumbered subclass APPARATUS CONSIDERATIONS) which discloses the effectiveness of a process as being dependent upon the use of a particular configuration of apparatus.

(1) Note. The following expressions generally are not considered sufficient to warrant placement of a document in this or indented subclasses unless a dimension is recited--

annular zone; acetylene converter; converter; elongated; multistage reactor; pyrolysis reactor; reactor regenerative furnace; vessel; zone

SEE OR SEARCH CLASS

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing, appropriate subclasses for apparatus employed in synthesis processes of this class.