US PATENT SUBCLASS 507 / 246
.~.~.~.~ Organic component contains an ether linkage

Current as of: June, 1999
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507 /   HD   EARTH BORING, WELL TREATING, AND OIL FIELD CHEMISTRY

200  DF  WELL TREATING {4}
203  DF  .~ Contains organic component {17}
239  DF  .~.~ Organic component contains nitrogen attached directly or indirectly to carbon by nonionic bonding {6}
244  DF  .~.~.~ Oxygen is attached directly or indirectly to carbon by nonionic bonding {2}
246.~.~.~.~ Organic component contains an ether linkage

DEFINITION

Classification: 507/246

Organic component contains an ether linkage:

(under subclass 244) Compositions wherein the organic component contains an ether linkage; i.e., two carbons directly bonded to the same oxygen atom (e.g., polyoxyalkyleneamines, etc.).