US PATENT SUBCLASS 208 / 108
.~.~.~ Catalytic

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

46  DF  CHEMICAL CONVERSION OF HYDROCARBONS {11}
106  DF  .~ Cracking {5}
107  DF  .~.~ Hydrogenative {1}
108.~.~.~ Catalytic {2}
109  DF  .~.~.~.~> Silica or silicate containing catalyst {1}
112  DF  .~.~.~.~> Metal or metal oxide catalyst

DEFINITION

Classification: 208/108

(under subclass 107) Processes in which a catalytic material is employed.

(1) Note. To be classified in this or indented subclasses the process must include (a) the treatment of a specific mineral oil identified by some definite physical or chemical property thereof, such as boiling range, specific gravity, etc., or (b) the use of a specifically identified catalytic material. Merely identifying the feed as a naphtha, as boiling within the gas-oil range or the use of a catalyst of a particular size is not itself sufficient to cause classification in this or indented subclass. Processes excluded by this note are classified below in subclass 146 which provides for mineral oil processes including the contacting of the oil with solids.

SEE OR SEARCH THIS CLASS, SUBCLASS:

146+, for manipulative processes of contacting of mineral oils with solid catalysts. (See (1) Note).

SEE OR SEARCH CLASS

502, Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making, for a composition comprising a catalyst or sorbent, per se.