US PATENT SUBCLASS 507 / 931
.~.~ Organic contaminant is paraffinic

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


507 /   HD   EARTH BORING, WELL TREATING, AND OIL FIELD CHEMISTRY

927  DF  WELL CLEANING FLUID {3}
929  DF  .~ Cleaning organic contaminant {2}
931.~.~ Organic contaminant is paraffinic

DEFINITION

Classification: 507/931

Organic contaminant is paraffinic:

Subject matter under art collection 929 wherein the well cleaning fluid is for cleaning a paraffinic residue from the well.