US PATENT SUBCLASS 208 / 290
.~ With organic compound

Current as of: June, 1999
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208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

177  DF  REFINING {23}
290.~ With organic compound {1}
291  DF  .~.~> Oxygen containing

DEFINITION

Classification: 208/290

(under subclass 177) Processes wherein mineral oil is treated with an added organic compound.

SEE OR SEARCH THIS CLASS, SUBCLASS:

237+, for processes of desulfurizing mineral oils with organic compounds.

282, for refining processes wherein organic acids are used.