The opinion in support of the decision being entered
today was not written for publication and is not binding
precedent of the Board.
UNITED STATES PATENT AND TRADEMARK OFFICE
_______________
BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
_______________
Ex parte MICHAEL SISKIN,
DAVID T. FERRUGHELLI, MARTIN L. GORBATY,
SIMON R. KELEMEN and LEO D. BROWN
______________
Appeal No. 2005-2465
Application 10/293,373
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ON BRIEF
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Before WARREN, OWENS and TIMM, Administrative Patent Judges.
WARREN, Administrative Patent Judge.
Decision on Appeal
This is an appeal under 35 U.S.C. § 134 from the decision of the examiner finally
rejecting claims 1 through 15, all of the claims in the application.
Claim 1 illustrates appellants’ invention of a delayed coking process, and is
representative of the claims on appeal:
1. A delayed coking process wherein substantially all of the coke produced is
substantially free-flowing anisotropic shot coke, which process comprises:
a) contacting a vacuum residuum feed with an oxidizing agent at a temperature from
about 150°C to about 325°C for an effective amount of time to significantly increase the amount
of one or more of asphaltenes, polars, and organically bound oxygen groups in the resid;
b) heating said oxidized resid feed to a temperature effective for coking said feed;
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