Appeal No. 1998-3367 Application No. 08/545,717 [citations omitted]. These cases have consistently held that in such a situation, the appellant must show that the particular range is critical, generally be showing that the claimed range achieves unexpected results relative to the prior art range. 13Page: Previous 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 NextLast modified: November 3, 2007