US PATENT SUBCLASS 585 / 920
.~ Using apparatus of recited composition


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

*  DD  APPARATUS CONSIDERATIONS {2}
920.~ Using apparatus of recited composition


DEFINITION

Classification: 585/920

Using apparatus of recited composition:

Collection of documents (under unnumbered subclass APPARATUS CONSIDERATIONS) wherein a process recites the composition of apparatus employed in the process, e.g., a stainless steel reactor wall, a refractory ceramic baffle, etc.

(1) Note. Materials which move through or are readily removable from the apparatus, e.g., catalyst beds, are not considered part of the apparatus for this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

403, 503, 537, and 636, for processes for synthesizing aromatics, olefin polymers, acetylenes, and monoolefins, respectively, wherein the composition of the apparatus used is specified.

921+, for a collection of patents in which the effectiveness of a process depends upon the use of apparatus having a defined structure configuration, independent of the composition of the structure.