US PATENT SUBCLASS 507 / 263
.~.~ Organic component contains a carbocyclic group (e.g., cycloaliphatic, aromatic ring, tall oil, etc.)

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}
263.~.~ Organic component contains a carbocyclic group (e.g., cycloaliphatic, aromatic ring, tall oil, etc.) {1}
264  DF  .~.~.~> Organic component is a phenol

DEFINITION

Classification: 507/263

Organic component contains a carbocyclic group (e.g., cycloaliphatic, aromatic ring, tall oil, etc.):

(under subclass 203) Compositions wherein the organic component contains at least one ring of carbon atoms (e.g., cycloaliphatics and aromatic rings, tall oils such as abietic-acid-containing compositions, etc.).