Appeal 2006-3371
Application 09/834,918
Appellants contend that Walrand neither teaches nor would have
suggested an IP data header that comprises a list of at least one intermediate
node to be visited on the way to the destination apparatus (Br. 7).
We reverse.
ISSUE
Does Walrand describe an IP data header that identifies at least one
intermediate node that is visited on the way to the destination node?
FINDINGS OF FACT
The IP data header disclosed and claimed by Appellants includes a list
of at least one intermediate node to be visited on the way to the destination
apparatus.
Walrand describes a method of classifying IP data that is sent from a
source apparatus to a destination apparatus in a packet switched network
(Fig. 2, Col. 2, ll. 32-36). When an IP data packet is received at a node, the
data is classified based on an entry in the header (Col. 2, ll. 32-46). While at
the node, the IP data packet consults a routing table to determine the next
node to receive the packet in route to the address of the destination apparatus
(Col. 3, ll. 54-58).
PRINCIPLE OF LAW
Anticipation is established when a single prior art reference discloses
expressly or under the principles of inherency each and every limitation of
the claimed invention. Atlas Powder Co. v. IRECO Inc., 190 F.3d 1342,
1347, 51 USPQ2d 1943, 1946 (Fed. Cir. 1999); In re Paulsen, 30 F.3d 1475,
1478-79, 31 USPQ2d 1671, 1673 (Fed. Cir. 1994).
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