US PATENT SUBCLASS 208 / 119
.~.~.~.~ With metal or metal oxide


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}
113  DF  .~.~ Catalytic {4}
118  DF  .~.~.~ Silica or silicate containing catalyst {1}
119.~.~.~.~ With metal or metal oxide {1}
120.01  DF  .~.~.~.~.~> With group III metal, rare earth metal, or metal oxide (i.e., Sc, Y, Al, Ga, In, Tl, metal of atomic number 57-71 or oxide thereof) {7}


DEFINITION

Classification: 208/119

(under subclass 118) Processes wherein the catalyst also contains a free metal or a metal oxide.

(1) Note. Combinations of a metal oxide and silica are classified herein even though they are combined in the form of a metal silicate. Similarly metal salts of amphoteric metals, for example, metal chromate are classified herein as mixtures of metal oxides.