Appeal No. 1999-0876 Application No. 08/693,494 No. 96-1258 (Fed. Cir. August 2, 2001). Thus, we will not accept as motivation for modifying Connolly bald assertions with no evidence to support them. Further, regarding the obviousness of "rearranging parts of an invention," Connolly generates the second random number at the handset because it is the handset which is being authenticated. Changing the generation of the second random number to the base station would not merely be a rearrangement of parts, but, rather, would destroy the operation of Connolly's system. The Federal Circuit has held that "a proposed modification [is] inappropriate for an obviousness inquiry when the modification render[s] the prior art reference inoperable for its intended purpose. In re Gordon, 733 F.2d 900, 902, 221 USPQ 1125, 1127 (Fed. Cir. 1984)." In re Fritch, 972 F.2d 1260, 1265-1266 n.12, 23 USPQ2d 1780, 1783 n.12 (Fed. Cir. 1992). Therefore, as we cannot accept either of the examiner's reasons for modifying Connolly, the examiner has failed to establish a prima facie case of obviousness. Consequently, we cannot sustain the obviousness rejection of claims 3, 5, 8, 9, 14, and 18 through 20. CONCLUSION 9Page: Previous 1 2 3 4 5 6 7 8 9 10 11 NextLast modified: November 3, 2007