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written for publication and is not binding precedent of the Board.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 ALLAN E. HOKANSON, DEREK WILLIAMS,
and CHRISTOPHER S. WILLIAMS
________________
Appeal 2007-1000
Application 10/315,842
Technology Center 1700
________________
Decided: March 23, 2007
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Before EDWARD C. KIMLIN, CHARLES F. WARREN, and
LINDA M. GAUDETTE, Administrative Patent Judges.
KIMLIN, Administrative Patent Judge.
DECISION ON APPEAL
This is an appeal from the final rejection of claims 1-12. Claim 1 is
illustrative:
1. A method of producing phosphoric acid from phosphate ore
comprising: mixing a carbon source, sulfur and silica with the phosphate ore
to form a phosphate mixture; mixing sufficient quantities of the sulfur with
the phosphate ore mixture to where the sulfur makes up approximately 0.5 to
4.0 percent of the phosphate mixture by weight; heating the mixture to a
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