SCR Networks v. Cisco Systems: Network Routing Patent Settled in 291 Days
SCR Networks LLC asserted US7266085B2 — a network routing patent — against Cisco’s ISR 4000, ASR 1000, and Catalyst 8500 product lines in the Eastern District of Texas. The parties jointly moved to dismiss with prejudice after reaching a confidential settlement, closing the case in under ten months before Judge Rodney Gilstrap.
Cisco’s Core Routing Portfolio Targeted in Swift EDTX Settlement
On 9 May 2024, SCR Networks LLC filed a patent infringement action against Cisco Systems Inc. in the Eastern District of Texas (Case No. 2:24-cv-00349), asserting US7266085B2 against a broad suite of Cisco networking products including the ISR 1900 Series, ISR 4000 Family, ASR 1000 Series, ASR 1001-X, Catalyst 8500 Series, and Cisco’s Mobile Ad-hoc Networks (MANET) implementations. The case was assigned to Judge Rodney Gilstrap, one of the most experienced patent trial judges in the United States.
The case resolved on 24 February 2025 — just 291 days after filing — when both parties filed a Joint Motion to Dismiss with Prejudice under Federal Rule of Civil Procedure 41(a), representing to the court that they had ‘agreed to settle, adjust and compromise all claims.’ Judge Gilstrap granted the motion, ordering dismissal with prejudice of all claims on both sides, with each party bearing its own costs and fees. The specific financial terms of the settlement remain confidential.
The sub-ten-month resolution is notably fast for an EDTX patent case, suggesting the parties reached a commercial accommodation relatively early in the litigation lifecycle — likely before or during the claim construction briefing phase. The ‘own costs’ provision is consistent with a structured licensing arrangement rather than a capitulation, though the public record does not disclose the settlement terms. What drove Cisco to settle — claim strength, portfolio risk, or commercial expediency — cannot be determined from available filings.
Filing to Dismissed with Prejudice in 291 days
291 days — faster than the EDTX median for patent cases, which often exceed 18 months
Dismissed with prejudice: what the joint settlement means for both parties
Rule 41(a) dismissal with prejudice explained
A dismissal with prejudice under Rule 41(a) of the Federal Rules of Civil Procedure is a final adjudication on the merits — SCR Networks cannot refile these claims against Cisco based on the same patent and same accused products. The joint nature of the motion signals mutual agreement rather than a unilateral withdrawal, strongly suggesting a negotiated settlement underpins the dismissal.
Permanent bar on re-filingUS7266085B2 remains valid and enforceable against third parties
A dismissal with prejudice terminates the dispute with Cisco but does not invalidate or limit the underlying patent. US7266085B2 remains in force and SCR Networks retains the right to assert it against other defendants. Depending on settlement terms, SCR Networks may have secured a licence fee. The patent’s scope and claim validity were never tested on the merits in this proceeding.
Patent survives, enforceable vs. othersCisco secures peace — but on undisclosed terms
Cisco’s dismissal with prejudice provides certainty: SCR Networks cannot reassert these specific claims against the accused Cisco products. However, because the settlement is confidential and the patent was not invalidated, Cisco’s legal exposure to US7266085B2-based claims from other assignees or if claims are later asserted in different configurations is not addressed by this order.
Claim-specific peace onlyBroad product list signals claim scope — a risk flag for the sector
The breadth of accused products — spanning enterprise ISR, ASR, Catalyst, and MANET platforms — suggests US7266085B2 may be read to cover widely-deployed routing protocol features. Other vendors with similar router and integrated services architectures operating in the same technical space should assess their exposure to this patent, which remains active and unlitigated on the merits.
Watch list: networking vendorsFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | SCR Networks, LLC | Company | Patent assertion entity — holder of US7266085B2 covering network routing protocolsSearch in Eureka ↗ |
| Defendant | Cisco Systems, Inc. | Company | Cisco Systems, Inc. — global leader in enterprise networking hardware and softwareSearch in Eureka ↗ |
| Plaintiff counsel | Hao Ni | Attorney | Counsel for SCR Networks, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Neal Massand | Attorney | Counsel for SCR Networks, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Nicholas Najera | Attorney | Counsel for SCR Networks, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Neal Massand | Law Firm | Representing SCR Networks, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Ni, Wang & Massand, PLLC | Law Firm | Representing SCR Networks, LLCSearch in Eureka ↗ |
| Defendant counsel | Eric Hugh Findlay | Attorney | Counsel for Cisco Systems, Inc.Search in Eureka ↗ |
| Defendant counsel | Joseph Masullo | Attorney | Counsel for Cisco Systems, Inc.Search in Eureka ↗ |
| Defendant counsel | Krishnan Padmanabhan | Attorney | Counsel for Cisco Systems, Inc.Search in Eureka ↗ |
| Defendant counsel | Scott M Border | Attorney | Counsel for Cisco Systems, Inc.Search in Eureka ↗ |
| Defendant counsel | Stuart Hene | Attorney | Counsel for Cisco Systems, Inc.Search in Eureka ↗ |
| Defendant law firm | Findlay Craft PC | Law Firm | Representing Cisco Systems, Inc.Search in Eureka ↗ |
| Defendant law firm | Winston Strawn LLP | Law Firm | Representing Cisco Systems, Inc.Search in Eureka ↗ |
| Defendant law firm | Winston Strawn LLP (DC) | Law Firm | Representing Cisco Systems, Inc.Search in Eureka ↗ |
| Presiding judge | Judge Rodney Gilstrap | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order adopts the joint motion language verbatim, confirming that no merits adjudication occurred — Judge Gilstrap made no findings on infringement, validity, or claim scope. The bilateral dismissal with prejudice structure, combined with the ‘each side shall bear its own costs’ directive, is a standard settlement-exit template in EDTX patent cases. It forecloses SCR Networks from reasserting these claims against Cisco but leaves the patent’s validity entirely intact and untested, preserving SCR Networks’ leverage against the broader market.
US7266085B2 — Network Routing Protocol Technology
US7266085B2 (application number US10/104336) covers network routing protocol technology — specifically methods and systems relating to how data packets are directed and forwarded across network infrastructure. The patent’s application date and ultimate grant place it within the era of rapid expansion in enterprise IP routing, when protocol-level innovations were foundational to the scalability of modern networks. Its assertion against products implementing IOS Release 15M&T suggests the claims may engage with control-plane or forwarding-plane routing features embedded in widely-deployed Cisco operating environments.
The strategic significance of US7266085B2 lies in the breadth of Cisco products named as accused — from branch-office ISR 1900 routers through carrier-grade ASR 1000 platforms and Catalyst 8500 edge switches, to MANET implementations. This breadth suggests claim language that reads across architectural variants rather than a single product-specific feature. For competing networking vendors — including Juniper, Nokia, Arista, and HPE — this patent warrants close monitoring: a settlement without invalidity ruling leaves it fully enforceable and potentially applicable to analogous routing implementations across the industry.
Should you run an FTO analysis against US7266085B2?
Any organisation developing, manufacturing, or deploying enterprise routers, integrated services routers, edge switches, or MANET-capable networking equipment should consider whether US7266085B2’s claims read on their products. The Cisco case demonstrates that the patent holder is actively enforcing this asset against commercial-scale deployments. Given the patent was never invalidated or subjected to claim construction, its enforceable scope remains undefined — precisely the conditions under which FTO risk is highest.
PatSnap Eureka’s FTO Search Agent can map US7266085B2’s claim language against your product architecture, identify prior art that may support an IPR petition, and surface any related continuation or family patents that could extend enforcement risk beyond this single asset. R&D and legal teams working on routing protocol implementations, packet forwarding systems, or MANET technology should run a targeted FTO before committing to product launch or scaling deployments in the enterprise networking segment.
Run a freedom-to-operate analysis on US7266085B2 to assess your product’s exposure
Run FTO in Eureka →Similar Network Routing Patent Cases in the Eastern District of Texas
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What this case signals for the enterprise networking IP landscape
A broad claim scope across Cisco’s core router lines and a swift settlement raises questions every networking vendor should be asking.
EDTX remains the venue of choice for patent assertion entities
SCR Networks’ selection of the Eastern District of Texas — and specifically Judge Gilstrap’s docket — is consistent with established PAE strategy. EDTX’s historically plaintiff-friendly scheduling orders and experienced patent bench continue to create settlement pressure on defendants even before substantive motions are decided.
A dismissed-with-prejudice settlement does not neutralise the underlying patent
US7266085B2 was never subjected to claim construction or validity challenge in this proceeding. Networking vendors whose products implement similar routing protocol features to Cisco’s accused ISR, ASR, and Catalyst lines should treat this patent as an active enforcement risk. An FTO analysis or IPR petition may be worth evaluating proactively.
SCR v Cisco — key questions answered
SCR Networks LLC asserted US7266085B2 (application no. US10/104336), a patent covering network routing protocol technology. The patent was asserted against a broad range of Cisco products including the ISR 1900 Series, ISR 4000 Family, ASR 1000 Series, ASR 1001-X, Catalyst 8500 Series, and MANET implementations running IOS Release 15M&T.
The case was resolved via a confidential settlement. Both parties filed a Joint Motion to Dismiss with Prejudice under Rule 41(a), which Judge Rodney Gilstrap granted on 24 February 2025. All claims on both sides were dismissed with prejudice, and each party was ordered to bear its own costs and fees. The financial terms of the settlement were not disclosed in public filings.
No. A dismissal with prejudice under Rule 41(a) terminates the dispute between SCR Networks and Cisco only — it does not affect the validity or enforceability of US7266085B2. The patent was never subjected to claim construction, validity challenge, or merits adjudication in this proceeding. It remains in force and can be asserted against other parties.
The Eastern District of Texas, and specifically Judge Gilstrap’s docket, is a historically preferred venue for patent assertion entities due to its efficient scheduling, experienced patent bench, and plaintiff-friendly local rules. Filing in EDTX typically accelerates case timelines and creates early settlement pressure on defendants, which is consistent with the sub-ten-month resolution seen in this case.
The complaint accused the Cisco ISR 1900 Series, ISR 4000 Family Integrated Services Routers, ASR 1000 Series, ASR 1001-X Router, 8000 Series routers, Catalyst 8500 Series, and Cisco’s Mobile Ad-hoc Networks (MANET) platforms. Products configured with IOS Release 15M&T were specifically referenced, suggesting the asserted claims engage with routing protocol features in Cisco’s IOS software stack.
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