The opinion in support of the decision being entered today was
not written for publication and is not precedent of the Board.
UNITED STATES PATENT AND TRADEMARK OFFICE
____________
BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
____________
Ex parte PER ZUETHEN and BARRY H. COOPER
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Appeal No. 2004-1488
Application No. 09/768,733
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HEARD: November 18, 2004
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Before OWENS, KRATZ, and PAWLIKOWSKI, Administrative Patent
Judges.
PAWLIKOWSKI, Administrative Patent Judge.
DECISION ON APPEAL
This is a decision on appeal from the examiner’s final
rejection of claims 1-8.
Claim 1 is representative of the subject matter on appeal
and is set forth below:
1. A process for reducing content of sulphur
compounds and polyaromatic hydrocarbons in a
hydrocarbon feed stock having a boiling range between
200ºC and 600ºC, which process comprises the steps of:
(a) contacting the feed stock with hydrogen over
a hydrotreating catalyst in a hydrotreating zone at
conditions being effective for hydrotreating and
obtaining a hydrotreated effluent comprising
hydrotreated feed stock, hydrogen sulphide and
hydrogen;
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