Mineral oils: processes and products – Asphalts – tars – pitches and resins; making – treating and... – Chemical modification of asphalt – tar – pitch or resin
Reexamination Certificate
2007-10-16
2007-10-16
Nguyen, Tam M. (Department: 1764)
Mineral oils: processes and products
Asphalts, tars, pitches and resins; making, treating and...
Chemical modification of asphalt, tar, pitch or resin
C208S023000, C208S022000
Reexamination Certificate
active
10981249
ABSTRACT:
A low viscosity, high coking value petroleum tar material having a high coking value as compared to standard petroleum tars and containing at least one biodiesel material dissolved therein, and a method for producing such material, are disclosed.
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Boyer David C.
Kiser Melvin D.
Emch, Schaffer, Schaub & Porcello & Co., L.P.A.
Marathon Ashland Petroleum Co. LLC
Nguyen Tam M.
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