Appeal No. 2006-1799 Application No. 10/269,955 It is our view that the Examiner has improperly relied on a per se rule of obviousness that merely adding additional parts, such as a second arcuate heat exchanger in the present factual 7Page: Previous 1 2 3 4 5 6 7 8 9 10 11 NextLast modified: November 3, 2007