Appeal No. 1998-2958 Application No. 08/671,516 types” was well known, “it would have involved only routine skill to select which one to use based upon the data available as well as the ease of solving a particular ‘calculation type.’” It appears to us that the examiner’s reasoning amounts to impermissible hindsight since only appellant’s disclosure teaches the desirability of having the predetermined set of calculation types stored in the computer system to allow selection of a calculation type. As explained by appellant, at page 4 of the brief, and supported by the Summary Of The Invention section of the instant specification, this permits appellant to calculate the air/fuel ratio “according to the measurement situation or the preference of the user” and can be “especially valuable in a situation where initially an oxygen gas measurement is previously available, but is no longer available for whatever reason...” Thus, the instant claims specifically require the selection of a calculation type from a predetermined set of calculation types and the claim limitation is explained to be for a specific purpose. Yet, the evidence relied on by the examiner for a showing of obviousness fails to teach the explicit claim limitation of such a selection and there is no suggestion by any evidence proffered by the examiner as to why the artisan might want to have the capability of selecting a calculation type from a predetermined set of calculation types stored in a computer system. Accordingly, we hold that the examiner has failed to present a prima facie case of obviousness under 35 U.S.C. § 103 with regard to the instant claimed subject matter. -6-Page: Previous 1 2 3 4 5 6 7 8 NextLast modified: November 3, 2007