US PATENT SUBCLASS 166 / 272.4
.~.~.~.~ In combination with alkyls or carbon chains

Current as of: June, 1999
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166 /   HD   WELLS

244.1  DF  PROCESSES {39}
268  DF  .~ Distinct, separate injection and producing wells {7}
272.1  DF  .~.~ Involving the step of heating {4}
272.3  DF  .~.~.~ Steam as drive fluid {2}
272.4.~.~.~.~ In combination with alkyls or carbon chains

DEFINITION

Classification: 166/272.4

In combination with alkyls or carbon chains:

(under subclass 272.3) Steam drive including a substance having (a) univalent aliphatic, aromatic-aliphatic, or alicyclic hydrocarbon radical or (b) the element carbon in a chemical string.

SEE OR SEARCH THIS CLASS, SUBCLASS:

293, for cement or consolidating material containing inorganic water settable and organic ingredients.

294, for cement or consolidating material being organic or having organic ingredients.

295, for organic cementing material being a resin or resinous.