Centripetal Networks, LLC v. Palo Alto Networks, Inc. et al.
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 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
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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.
- 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
- Inventors
- AHN, DAVID K. · MOORE, SEAN · DISABELLO, DOUGLAS M.
- Classification
- H04L29/06H04L29/12
- Prosecution counsel
- BANNER & WITCOFF, LTD.
- Examiner
- LEE, JASON
Parties of record
Centripetal Networks, LLC
- Core tech
- H04L29/06H04L29/12
- Counsel
- Matthew James Dowd · Robert James Scheffel
- Firm
- Dowd Scheffel PLLC
Palo Alto Networks, Inc.
- Core tech
- Not recorded
- Counsel
- Andrew T. Radsch · Douglas Hallward-Driemeier · James Richard Batchelder · Scott Anthony McKeown
- Firm
- Ropes & Gray LLP
- Also named
- Katherine K. Vidal · Keysight Technologies, Inc. · Cisco Systems, Inc.
Counsel of record
| Attorney | For | Role |
|---|---|---|
| Matthew James Dowd | Centripetal Networks, LLC | Plaintiff |
| Robert James Scheffel | Centripetal Networks, LLC | Plaintiff |
| Andrew T. Radsch | Palo Alto Networks, Inc. | Defendant |
| Douglas Hallward-Driemeier | Palo Alto Networks, Inc. | Defendant |
| James Richard Batchelder | Palo Alto Networks, Inc. | Defendant |
| Scott Anthony McKeown | Palo Alto Networks, Inc. | Defendant |
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
Related cases
Three questions this record usually leads to. Each one runs against the full litigation and patent corpus, and cites what it finds.
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.
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