Litigation

Palo Alto Networks, Inc. v. Centripetal Networks, Inc.

Unpatentable (on remand)

IPR2022-00182

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Filed
2021-11
Terminated
2026-06-12

Patents at issue (1)

Defender signal. Patent 9917856 has had claims invalidated at PTAB. Those final written decisions are public record and a ready-made § 102 / § 103 ground in district court. See IPR estoppel for what carries over.

Summary

Palo Alto Networks filed an Inter Partes Review challenging claims 1, 24, and 25 of US9917856. After an appeal and remand by the Federal Circuit, a new PTAB panel issued a Final Written Decision on Remand, again finding the challenged claims unpatentable as obvious.

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