Morris Routing Technologies v. Ribbon Communications: 7-Patent SR Dispute Ends in 99 Days
Morris Routing Technologies asserted seven segment routing patents against Ribbon Communications’ 5G-native, HFR, Neptune, and Muse orchestration products in E.D. Texas. The case closed in just 99 days via a stipulated dismissal with prejudice under Rule 41(a)(1)(A)(ii), strongly suggesting the parties reached a private resolution before any substantive court rulings.
Seven Segment Routing Patents, One Fast Exit: Reading the Morris v. Ribbon Outcome
Filed on 7 August 2025 before Judge Sean D. Jordan in the Eastern District of Texas, Morris Routing Technologies, LLC brought an infringement action against Ribbon Communications, Inc. asserting seven US patents — US10594594B1, US10652134B1, US10757010B1, US10404583B1, US10574562B1, US10652133B1, and US10389624B1 — all directed to segment routing (SR) technology. The accused products span Ribbon’s SR-capable 5G-native solutions, HFR offerings, the Neptune product family, and the Muse orchestration platform.
The case closed on 14 November 2025, just 99 days after filing, through a stipulation of dismissal with prejudice filed jointly by both parties under Federal Rule of Civil Procedure 41(a)(1)(A)(ii). The court accepted the parties’ submission (Dkt. #10) and entered dismissal. A with-prejudice designation bars Morris Routing Technologies from re-asserting the same seven patents against Ribbon on the same accused products in any future action.
The speed of resolution — under 100 days — and the bilateral, stipulated nature of the dismissal are consistent with a confidential licensing or settlement agreement reached before any claim construction, discovery disputes, or dispositive motions. The public record is silent on financial terms. What remains unknown is whether Ribbon obtained a license, a covenant not to sue, or some other commercial arrangement — a distinction material to competitors and standard-setting bodies monitoring SR patent activity.
Filing to Dismissed with Prejudice in 99 days
99 days — well below the median E.D. Texas patent case duration, consistent with rapid settlement
Dismissed with prejudice: what the stipulated exit means for both parties
Rule 41(a)(1)(A)(ii): a bilateral, court-free exit
A stipulated dismissal under FRCP 41(a)(1)(A)(ii) requires both parties’ signatures and takes effect without a court order — the judge’s role is administrative. The with-prejudice designation was almost certainly negotiated: plaintiffs rarely agree to it without receiving something of value, as it permanently extinguishes their right to re-sue Ribbon on these seven patents regarding the same accused products.
Mutual consent requiredWith prejudice means no second bite at the apple
Unlike a without-prejudice dismissal — which preserves the plaintiff’s right to refile — a with-prejudice dismissal operates as a final judgment on the merits for res judicata purposes. Morris Routing Technologies cannot bring these specific claims against Ribbon again. This finality typically reflects a concluded negotiation rather than a unilateral plaintiff withdrawal.
Claim extinguishedMorris likely extracted a commercial resolution
Agreeing to a with-prejudice dismissal within 99 days, before any substantive litigation milestones, is consistent with a patent licensing entity securing a licensing fee or lump-sum settlement. No financial terms are public. Morris retains the seven patents and may continue asserting them against third parties — the dismissal binds only Ribbon.
Patents survive vs. third partiesRibbon achieves certainty — at undisclosed cost
Ribbon Communications avoids a prolonged E.D. Texas patent trial, claim construction proceedings, and the threat of injunctive relief against its Neptune and Muse product lines. The with-prejudice dismissal provides permanent freedom from these seven Morris patents on these accused SR products. Whether Ribbon paid a license fee or obtained broader portfolio clearance remains undisclosed.
Commercial certainty achievedFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Morris Routing Technologies, LLC | Company | Segment routing patent licensing entity — holder of US10594594B1 and 6 related SR patentsSearch in Eureka ↗ |
| Defendant | Ribbon Communications, Inc. | Company | Ribbon Communications, Inc. — telecom network solutions provider: 5G, HFR, Neptune, MuseSearch in Eureka ↗ |
| Plaintiff counsel | Derek Dahlgren | Attorney | Counsel for Morris Routing Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Timothy Devlin | Attorney | Counsel for Morris Routing Technologies, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Devlin Law Firm LLC (Wilmington) | Law Firm | Representing Morris Routing Technologies, LLCSearch in Eureka ↗ |
| Defendant counsel | Kurt Max Pankratz | Attorney | Counsel for Ribbon Communications, Inc.Search in Eureka ↗ |
| Defendant law firm | Baker Botts LLP | Law Firm | Representing Ribbon Communications, Inc.Search in Eureka ↗ |
| Presiding judge | Judge Sean D. Jordan | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal order adopts the parties’ stipulation verbatim, referencing Dkt. #10 as the operative submission. The with-prejudice designation is the critical phrase: under Ninth and Fifth Circuit precedent, it carries res judicata effect equivalent to a merits adjudication for these parties on these claims. The absence of any fee-shifting language or court-imposed conditions suggests the dismissal was entirely consensual. No claim construction record, no infringement findings, and no validity rulings were issued — the substantive merits of the seven SR patents remain untested by this court.
US10594594B1 — Segment Routing Path Computation and Traffic Engineering
The seven asserted patents — filed between 2018 and 2020 across application numbers US16/101386 through US16/803978 — form a tightly clustered portfolio directed to segment routing (SR) technology. SR is a source-routing paradigm for IP and MPLS networks in which the ingress node encodes an explicit path or service chain as an ordered list of instructions (segments) in the packet header, eliminating the need for per-flow state in intermediate nodes. The patents cover path computation, label assignment, topology management, and traffic engineering aspects of SR, all of which are foundational to modern 5G transport and cloud-native WAN architectures.
Segment routing is now deeply embedded in 5G transport, SD-WAN, and cloud interconnect deployments — making SR patents strategically valuable against vendors shipping SR-capable hardware and software. Ribbon Communications’ explicit accusation across four distinct product lines (5G-native solutions, HFR platforms, the Neptune family, and Muse orchestration) suggests the Morris portfolio was mapped broadly across Ribbon’s SR stack. Any competitor shipping SR-capable routing, optical networking, or network orchestration products faces analogous exposure. The portfolio’s clustering around 2018–2020 priority dates also means the patents remain in-force with substantial remaining term.
Should your SR product team run an FTO against the Morris Routing patent portfolio?
Any vendor shipping segment-routing-capable network equipment, 5G transport solutions, SD-WAN controllers, or network orchestration platforms should treat the Morris Routing portfolio as a live FTO risk. The explicit targeting of orchestration software (Muse) alongside hardware (Neptune, HFR) signals that the portfolio is not limited to forwarding-plane implementations — control-plane and management-plane SR features are also in scope. If your product supports SRv6, SR-MPLS, or SR-TE path computation, an FTO analysis against all seven patents is advisable before next release.
PatSnap Eureka’s FTO Search Agent can map your product’s SR feature set against the claim scope of US10594594B1 and the six related Morris patents in a single workflow — surfacing potential claim overlaps, identifying prosecution history estoppel, and flagging prior art that may support design-around or IPR strategies. Given that the Morris patents were never substantively tested in this litigation, their claim scope remains untested by any court, making proactive FTO analysis the most cost-effective risk management step available to SR product and R&D teams.
Run a freedom-to-operate analysis on US10594594B1 to assess your product’s exposure
Run FTO in Eureka →Similar Segment Routing & Telecom Infrastructure Patent Cases in E.D. Texas
Cases involving segment routing and telecom network patents litigated in the Eastern District of Texas, including comparable NPE assertion patterns and multi-patent SR portfolios.
What this case signals for the segment routing IP landscape
A 7-patent SR assertion resolved in under 100 days in E.D. Texas warrants close attention from every telecom infrastructure vendor.
E.D. Texas remains the preferred venue for SR patent assertions
Morris Routing Technologies’ choice of the Eastern District of Texas — a historically plaintiff-friendly forum — signals a deliberate venue strategy. Telecom vendors with SR-capable products should treat E.D. Texas filings as a credible litigation risk, particularly given the court’s expedited scheduling norms that compress defendants’ response windows.
Seven-patent portfolios create multi-front infringement pressure
Asserting seven related SR patents simultaneously raises the cost and complexity of any non-infringement or invalidity defence. Even if one or two patents are vulnerable to IPR or § 101 challenge, the remaining patents sustain litigation pressure. Vendors should audit their SR implementations against the full Morris portfolio, not just the lead patent.
Morris v Ribbon — key questions answered
Morris Routing Technologies asserted seven US patents: US10594594B1, US10652134B1, US10757010B1, US10404583B1, US10574562B1, US10652133B1, and US10389624B1. All are directed to segment routing technology and were filed between 2018 and 2020. The accused products included Ribbon’s 5G-native SR solutions, HFR offerings, the Neptune product family, and the Muse orchestration platform.
The case was dismissed with prejudice after just 99 days via a bilateral stipulation under FRCP 41(a)(1)(A)(ii), before any claim construction or discovery proceedings. This pattern is consistent with a private settlement or licensing agreement. A with-prejudice dismissal requires the plaintiff’s consent and permanently bars re-assertion of the same claims against Ribbon, suggesting Morris received commercial consideration in exchange.
Dismissal with prejudice operates as a final judgment on the merits for res judicata purposes. Ribbon Communications cannot be sued again by Morris Routing Technologies on these seven segment routing patents concerning the same accused products. It provides Ribbon with permanent legal certainty regarding the asserted patent claims, though whether Ribbon obtained a license or broader portfolio clearance is not disclosed in the public record.
The complaint identified four categories of accused products: SR-capable 5G-native solutions, SR-capable HFR (High-scale Routing) offerings, Ribbon’s Neptune product family, and orchestration solutions including the Muse platform. This broad product mapping suggests the Morris portfolio covers both hardware forwarding-plane and software control/orchestration-plane implementations of segment routing.
Yes. The dismissal with prejudice binds only Ribbon Communications — Morris Routing Technologies retains ownership of all seven patents and may assert them against other telecom vendors. The portfolio covers foundational segment routing methods applicable to any vendor shipping SR-capable 5G transport, HFR, SD-WAN, or network orchestration products. No court has ruled on the validity or claim scope of any of the seven patents, leaving them legally untested.
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