US PATENT SUBCLASS 208 / 128
.~.~.~ Vapors
Current as of:
June, 1999
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208 /
HD
MINERAL OILS: PROCESSES AND PRODUCTS
46
DF
CHEMICAL CONVERSION OF HYDROCARBONS
{11}
106
DF
.~ Cracking {5}
125
DF
.~.~ With nonreactive material {2}
128
.~.~.~ Vapors {2}
129
DF
.~.~.~.~
> Combustion gases
130
DF
.~.~.~.~
> Steam
DEFINITION
Classification: 208/128
(under subclass 125) Processes wherein cracking takes place in the presence of an added gas or vapor.