What happened in Centripetal Networks v. Keysight?

Federal Circuit affirmed PTAB: patent claims unpatentable as anticipated by prior art like Cisco's IPUG. Key issue

Is IPUG considered prior art after this decision?

Yes. Court ruled it publicly accessible pre-filing date, with substantial evidence of indexing and availability.

Will this affect other network security patents?

Likely. Vague action claims vulnerable in IPRs; forces sharper drafting to avoid anticipation traps.

Federal Circuit to Centripetal: 'Allowing' a Packet Counts as Action – Patent Dies

One snappy quote from the bench, and Centripetal's prized patent crumbles. The Federal Circuit just reminded everyone: doing nothing isn't patentably novel.

theAIcatchup Apr 08, 2026 4 min read

Federal Circuit gavel striking down network packet icons representing invalidated patent

⚡ Key Takeaways

CAFC holds 'allowing' a packet is a valid 'corresponding action,' dooming Centripetal's claim. 𝕏
IPUG user guide qualifies as prior art—public accessibility confirmed. 𝕏
Decision emphasizes distinct claim steps; impacts cybersecurity patent strategies. 𝕏

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#Centripetal Networks #Federal Circuit #Federal Circuit patent #Federal Circuit patent appeals #PTAB decision #PTAB decisions #claim construction #network security IP #network security patents #patent anticipation

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Originally reported by IPWatchdog

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