Appeal No. 1998-1567 2
Application No. 08/636,816
gaseous hydrocarbons utilizing a platinum catalyst. The catalyst consists essentially of 2 to
90% by weight platinum on a ceramic monolith consisting of specific components.
Additional limitations are forth in the following illustrative claim.
THE CLAIM
Claim 1 is illustrative of appellants’ invention and is reproduced below:
1. A process for the production of a mono-olefin from a gaseous paraffinic
hydrocarbon having at least two carbon atoms or mixtures thereof comprising
reacting said hydrocarbons and molecular oxygen in the presence of a platinum
catalyst consisting essentially of 2 to 90 wt. % platinum on a ceramic foam
monolith consisting of the oxides of Zr, Ca, Mg, Hf, Ti or mixtures thereof.
THE REFERENCES OF RECORD
As evidence of obviousness, the examiner relies upon the following references:
Hazbun 4,827,071 May 2,
1989
Warren 5,073,657 Dec. 17,
1991
Font Freide et al. (Font Freide) 5,105,052 Apr. 14,
1992
THE REJECTION
Claims 1, 3 and 9 through 20 stand rejected under 35 U.S.C. § 103(a) as being
unpatentable over Font Freide in view of Warren or Hazbun.
OPINION
We have carefully considered all of the arguments advanced by the appellants and
the examiner, and agree with the appellants that the rejection of claims 1, 3 and 9
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