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Centripetal Networks v. Palo Alto Networks et al. | Patent Lawsuit 23-127

Centripetal Networks, LLC v. Palo Alto Networks, Inc. et al.

23-127 Fed. Cir. Closed US9917856B2
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Patentability filed 23 Mar 2023 in the United States Court of Appeals for the Federal Circuit and closed 16 May 2023, with US9917856B2 asserted. Recorded basis of termination: petition dismissed.

Case recordPatsnap Litigation Data·

Case record

Patent involved
US9917856B2
Application no.
US14/757638
Case no.
23-127
Verdict cause
Patentability
Court
Fed. Cir.
Court level
Court of Appeals
Case region
District of Columbia
Chief judge
None recorded
Trial level
Appeal
Filed – Closed
23 Mar 2023 – 16 May 2023
Duration
54 days
Basis of termination
Petition Dismissed
Products & marks
Rule-based network-threat detection for encrypted communications
Validity challenges
9 on record
Source: Patsnap Litigation Data. Case 23-127, United States Court of Appeals for the Federal Circuit. Open this record in Eureka
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Patent at issue
US9917856B2 Active App. US14/757638

Rule-based network-threat detection for encrypted communications

A packet-filtering system configured to filter packets in accordance with packet-filtering rules may receive data indicating network-threat indicators and may configure the packet-filtering rules to cause the packet-filtering system to identify packets comprising unencrypted data, and packets comprising encrypted data. A portion of the unencrypted data may correspond to one or more of the network-threat indicators, and the packet-filtering rules may be configured to cause the packet-filtering system to determine, based on the portion of the unencrypted data, that the packets comprising encrypted data correspond to the one or more network-threat indicators.

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Patent standing
Legal status
Active
Granted
13 Mar 2018
Est. expiry
23 Dec 2035
Validity challenges
9 on recordIPR2022-01151 · Patentability · filed by PALO ALTO NETWORKS, INCIPR2022-00182 · Other · filed by Palo Alto Networks, Inc.IPR2022-01151 · Patentability · filed by CENTRIPETAL NETWORKSIPR2022-01151 · Patentability · filed by Cisco Systems, Inc.IPR2022-01199 · Patentability · filed by CENTRIPETAL NETWORKSIPR2022-00182 · Patentability · filed by CISCO SYSTEMS, INC.IPR2022-01199 · Patentability · filed by KEYSIGHT TECHNOLOGIES, INC.IPR2022-01199 · Patentability · filed by PALO ALTO NETWORKS, INCIPR2022-00182 · Patentability · filed by Palo Alto Networks, Inc.
Licences recorded
None recorded
Classification
H04L29/06H04L29/12
Prosecution counsel
BANNER & WITCOFF, LTD.
Examiner
LEE, JASON
US9917856B2 patent drawing, figure 1
Fig. 1
US9917856B2 patent drawing, figure 2
Fig. 2
Source: Patsnap patent data + case record. Bibliographic fields and drawings reproduced from the published patent document. Break down the claims
Parties & counsel

Parties of record

Counsel of record

Source: case record + Patsnap company data. Attorney names appear as recorded in the docket. Compare both portfolios
Outcome

Basis of termination

From the record · verbatim

“Centripetal Networks, LLC petitions for a writ of mandamus to direct the Patent Trial and Appeal Board to vacate all decisions in this inter partes review (“IPR”) and constitute a new panel of administrative patent judges (“APJs”) to reconsider the IPR petition. The United States Patent and Trademark Office (“PTO”), Palo Alto Networks, Inc. (“PAN”), Cisco Systems, Inc., and Keysight Technologies, Inc. oppose. Centripetal replies. Centripetal owns patents relating to systems and methods that perform computer networking security Case: 23-127 Document: 26 Page: 1 Filed: 05/16/2023 2 IN RE: CENTRIPETAL NETWORKS, LLC functions, including U.S. Patent No. 9,917,856 (“the ’856 patent”). In 2021, Centripetal filed a civil action against PAN for patent infringement. In response, PAN filed IPR petitions seeking the PTO’s review of Centripetal’s patents. In May 2022, a Board panel consisting of APJs McNamara, Moore, and Amundson, instituted review of the ’856 patent. On June 8, 2022, Centripetal sought rehearing of the institution decision. On June 24, 2022, Cisco and Keysight filed petitions for IPR of the ’856 patent that were substantively identical to PAN’s petition and moved for joinder. In December 2022, Centripetal moved for APJ McNamara’s recusal and vacatur of the institution decision on the ground that he owned Cisco stock; Centripetal principally relied on this court’s decision vacating a damages award against Cisco (based on the ’856 patent) after the court concluded that disqualification was required under 28 U.S.C. § 455(b)(4) because the spouse of the trial judge owned Cisco stock. See Centripetal Networks, Inc. v. Cisco Sys., Inc., 38 F.4th 1025 (Fed. Cir. 2022). On January 4, 2023, the panel denied Centripetal’s request for rehearing, granted Cisco’s and Keysight’s petitions to institute, and joined the three proceedings. APJs McNamara and Amundson then withdrew and were replaced by APJs Wormmeester and Khan. On February 3, 2023, the new panel rejected Centripetal’s argument that APJ McNamara’s ownership of stock in Cisco required vacatur of the decision instituting PAN’s IPR. The Board concluded that “Cisco was not a party to this proceeding at the time of the Institution Decision,” that the statute that required disqualification in Cisco “does not apply to the Board,” and that the value of APJ McNamara’s stock “falls well below” the threshold requiring recusal set by Executive Branch ethical standards. Appx11, Appx20. On February 7, 2023, the Board also denied without prejudice Centripetal’s motion for pro hac vice admission of one of its attorneys based on, inter alia, his prior failure to Case: 23-127 Document: 26 Page: 2 Filed: 05/16/2023 IN RE: CENTRIPETAL NETWORKS, LLC 3 comply with the Board’s rules and procedures and improper conduct before two district courts. We have jurisdiction over Centripetal’s mandamus petition under 28 U.S.C. §§ 1295(a)(4)(A), 1651, and 35 U.S.C. §§ 141(c), 319. See Mylan Laby’s Ltd. v. Janssen Pharmaceutica, N.V., 989 F.3d 1375, 1380 (Fed. Cir. 2021). In order for Centripetal to establish entitlement to the “extraordinary remedy” of a writ of mandamus, it must show that: (1) there are “no other adequate means to attain the relief [it] desires,” (2) the “right to issuance of the writ is clear and indisputable,” and (3) “the writ is appropriate under the circumstances.” Cheney v. U.S. Dist. Ct. for D.C., 542 U.S. 367, 380–81 (2004) (internal quotation marks and citations omitted). Centripetal has failed to satisfy this demanding standard. Centripetal has not shown that it will be unable to raise its arguments after a final written decision, which is expected to issue shortly. Cf. Mobility Workx, LLC v. Unified Pats., LLC, 15 F.4th 1146, 1150–57 (Fed. Cir. 2021) (addressing arguments regarding conflict of interest for APJs after final written decision). Nor has it shown any “irremediable interim harm” that would justify mandamus, particularly at this late stage in the proceedings. In re Procter & Gamble Co., 749 F.3d 1376, 1379 (Fed. Cir. 2014). Finally, without making any definitive conclusions, we cannot say that Centripetal has shown a clear and indisputable right to vacatur, particularly given the lack of any evidence that Cisco was involved in the proceedings at the time of institution, Cisco’s backup capacity status, and the fact that APJ McNamara will not be a member of the panel that decides the ultimate merits in the IPR proceeding. Accordingly, Case: 23-127 Document: 26 Page: 3 Filed: 05/16/2023 4 IN RE: CENTRIPETAL NETWORKS, LLC IT IS ORDERED THAT: The petition is denied.”

Case 23-127 · Fed. Cir. · closed 16 May 2023
Source: case record, verbatim. The quoted paragraph is the basis-of-termination text as filed.

Related cases

Three questions this record usually leads to. Each one runs against the full litigation and patent corpus, and cites what it finds.

FAQ

Frequently asked questions

What is case 23-127?

23-127 is a patent patentability brought by Centripetal Networks, LLC against Palo Alto Networks, Inc., filed on 23 Mar 2023 in the United States Court of Appeals for the Federal Circuit. The case closed on 16 May 2023.

Which patent was asserted in 23-127?

US9917856B2 (“Rule-based network-threat detection for encrypted communications”), assigned to CENTRIPETAL NETWORKS, LLC, currently active. The record also lists Rule-based network-threat detection for encrypted communications.

How was case 23-127 terminated?

The recorded basis of termination is petition dismissed. The termination text reads: “Centripetal Networks, LLC petitions for a writ of mandamus to direct the Patent Trial and Appeal Board to vacate all decisions in this inter partes review (“IPR”) and constitute a new panel of administrative patent judges (“APJs”) to reconsider the IPR petition. The United States Patent and Trademark Office (“PTO”), Palo Alto Networks, Inc. (“PAN”), Cisco Systems, Inc., and Keysight Technologies, Inc. oppose. Centripetal replies. Centripetal owns patents relating to systems and methods that perform computer networking security Case: 23-127 Document: 26 Page: 1 Filed: 05/16/2023 2 IN RE: CENTR

What does dismissal without prejudice mean?

A dismissal without prejudice ends this action but leaves the claims alive — the plaintiff may file them again later, subject to the limitation period.

How long did case 23-127 take?

54 calendar days, from filing on 23 Mar 2023 to closure on 16 May 2023.

Who were the attorneys and the judge in 23-127?

Matthew James Dowd and Robert James Scheffel are recorded as counsel for plaintiff Centripetal Networks. Andrew T. Radsch, Douglas Hallward-Driemeier, James Richard Batchelder and Scott Anthony McKeown appear for defendant Palo Alto Networks.

Answers reproduce fields from the case record for 23-127 and do not constitute legal advice. Ask your own question

Disclaimer. This page reproduces publicly available court docket data for case 23-127 and is provided for general information and reference only. It is not legal advice and must not be relied upon as such.

Docket data has limits. Records are drawn from a snapshot and may lag the live docket. Sealed filings, amended complaints, counterclaims and post-closure motions may not be reflected. Party names, attorney names and firm affiliations are reproduced as recorded and may contain omissions. Where a field is absent from the record, this page marks it as not recorded rather than inferring a value.

No characterisation of the parties or the outcome. This page reports what the record contains. Nothing here should be read as an assertion that any party infringed, that any patent is valid or invalid, that any settlement occurred, or that any party prevailed.

No FTO or validity opinion. Nothing on this page constitutes a freedom-to-operate, novelty, validity or infringement opinion. Any decision touching a live patent dispute should be verified independently and reviewed with qualified patent counsel.

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