(under subclass 534) Subject matter wherein the 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 and 537, for aromatic synthesis, olefin polymerization, and monoolefin synthesis, respectively, using apparatus of recited composition.
920, for a collection of patents using such apparatus in other processes.
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.
