Appeal No. 2000-0034 Application 08/473,634 ordinary skill in the art to use a confined reactor in Harada’s method because use of such a reactor ensures sufficient residence time to complete the reaction (answer, page 3). Even if essentially Harada’s entire reactor can be a confined portion of the reactor, the examiner has not provided evidence or technical reasoning which shows that the flow introduced into Harada’s reactor is introduced into essentially the entire reactor rather than being introduced into the entire reactor. Moreover, the examiner’s argument that one of ordinary skill in the art would have used a confined reactor to provide sufficient residence time for the reaction is irrelevant because what the appellants’ claim 18 requires is not that a confined reactor is used but, rather, that the gas is introduced into a confined portion of the reactor. Because the examiner has not established that introducing Harada’s flow into a confined portion of the reactor would have been fairly suggested to one of ordinary skill in the art by the applied prior art, the examiner has not carried the burden of establishing a prima facie case of obviousness of the method recited in that claim. 7Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NextLast modified: November 3, 2007