Appeal No. 1999-1056
Application No. 08/525,844
fails to establish a prima facie case, the rejection is
improper and will be overturned. In re Fine, 837 F.2d 1071,
1074, 5 USPQ2d 1596, 1598 (Fed. Cir. 1988). In order to
establish the prima facie obviousness of a claimed invention,
all the claim limitations
must be taught or suggested by the prior art. In re Royka,
490 F.2d 981, 985, 180 USPQ 580, 583 (CCPA 1974).
We begin our review with independent claims 1 and 6. We
note that claim 6 calls for a vehicle steering control system
comprising a manual steering torque input means for manually
applying a manual steering torque and powered steering
actuator means for applying an actuating steering torque to
steerable wheels of a vehicle, means for detecting a lateral
dynamic condition of the vehicle and control means for
controlling the actuating steering torque according to the
detected lateral dynamic condition so that actuating steering
torque is dependent on the detected lateral dynamic condition
and a change rate of the detected lateral dynamic condition in
4
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