US PATENT SUBCLASS 208 / 277
.~.~.~.~ Organic compound

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

177  DF  REFINING {23}
265  DF  .~ With acids {4}
266  DF  .~.~ Sulfuric acid {7}
276  DF  .~.~.~ With nonwater additive {2}
277.~.~.~.~ Organic compound

DEFINITION

Classification: 208/277

(under subclass 276) Processes wherein an added organic compound is employed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

290+, for processes of refining mineral oil in which an added organic compound is employed.