Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Reexamination Certificate
2007-05-15
2008-09-30
Zimmer, Marc S (Department: 1796)
Earth boring, well treating, and oil field chemistry
Earth boring
Contains organic component
C585S254000, C585S255000, C585S502000, C585S510000, C585S530000, C585S664000, C585S800000
Reexamination Certificate
active
07429553
ABSTRACT:
This invention relates to a method for reducing the toxicity of a mixture of hydrocarbons by means of fractional distillation, a distillate having a reduced toxicity and a composition including the distillate.
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Dunlop Carl
Hlohloza Stewart
Hoffmann Petrus Johannes
Knottenbelt Cyril David
Walliser Leon
Knobbe Martens Olson & Bear LLP
Petroleum Oil and Gas Corporation of South Africa (Pty) Ltd.
Zimmer Marc S
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