US PATENT SUBCLASS 507 / 136
.~.~ Organic component contains ether linkage (e.g., PEG ether, etc.)

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

100  DF  EARTH BORING {4}
103  DF  .~ Contains organic component {14}
136.~.~ Organic component contains ether linkage (e.g., PEG ether, etc.)

DEFINITION

Classification: 507/136

Organic component contains ether linkage (e.g., PEG ether, etc.):

(under subclass 103) Composition wherein the organic component contains an ether linkage to organic carbon (e.g., cyclic ethers, such as pyrans, furans, crown ethers, etc.; linear ethers; and polyethers, such as polyalkoxylated alkylphenols, polyalkylene glycols, etc.).