WSOU Investments v. TP-Link Technology — Dismissed With Prejudice After 1,159 Days
WSOU Investments LLC asserted US9226305B2 — a patent covering data transmission priority for mobile units — against TP-Link’s Archer AX6000 Wi-Fi router in the Western District of Texas. After more than three years of litigation, the parties jointly moved to dismiss all claims with prejudice, each side bearing its own costs.
Three-year Wi-Fi router patent dispute ends in joint dismissal with prejudice
On October 31, 2020, WSOU Investments LLC filed suit against TP-Link Technology Co., Ltd. in the Western District of Texas before Judge Alan D. Albright, asserting infringement of US9226305B2. The patent covers technology for providing data transmission and device priority to mobile units. WSOU specifically identified TP-Link’s Archer AX6000 Next-Gen Wi-Fi Router and substantially similar products as the accused instrumentalities.
The case concluded on January 3, 2024, when Judge Albright granted the parties’ Joint Motion to Dismiss with Prejudice. All claims asserted by WSOU against TP-Link were dismissed with prejudice, with each side directed to bear its own costs, expenses, and attorneys’ fees. A dismissal with prejudice is a final adjudication on the merits, permanently barring WSOU from reasserting the same patent claims against TP-Link on the same accused products.
The 1,159-day duration suggests the parties litigated substantively before reaching resolution — consistent with a negotiated settlement that was then memorialised as a joint dismissal. The mutual cost-bearing arrangement, combined with the with-prejudice designation, suggests a negotiated resolution rather than a unilateral capitulation. The specific financial terms, if any, remain confidential and are not reflected in the public record.
Filing to dismissal in 1159 days
1,159 days — over three years from filing to dismissal in W.D. Texas
Joint dismissal with prejudice: what the order means for both parties
Dismissal with prejudice is final — no second bite at the apple
A dismissal with prejudice operates as a final judgment on the merits under Federal Rule of Civil Procedure 41. WSOU is permanently barred from filing a new lawsuit asserting the same claims under US9226305B2 against TP-Link for the accused products. This is the strongest form of closure available — unlike a without-prejudice dismissal, there is no possibility of refiling.
Rule 41 — final on the meritsEach side bears own costs — no prevailing party fee award
The order explicitly directs each party to bear its own costs, expenses, and attorneys’ fees. This arrangement departs from a scenario where one party is declared a prevailing party and awarded fees under 35 U.S.C. § 285. The mutual cost allocation is consistent with a negotiated resolution and suggests neither party sought to leverage an exceptional-case fee motion as part of the endgame.
No § 285 fee awardThree years of litigation before joint resolution in Waco
Filed in October 2020 and closed in January 2024, the case ran 1,159 days under Judge Alan D. Albright in the Waco division — a venue historically favoured by patent plaintiffs for its speed and jury composition. The extended duration suggests the parties engaged meaningfully in claim construction, discovery, or parallel proceedings before agreeing to dismiss. WSOU retained DiNovo Price LLP and The Mort Law Firm; TP-Link was defended by Fish & Richardson and Kilpatrick Townsend.
W.D. Texas — Judge AlbrightWSOU is a prolific PAE — this was one of many parallel campaigns
WSOU Investments LLC is a patent assertion entity with a portfolio derived from Nokia/Alcatel-Lucent assets, and has filed hundreds of cases asserting wireless and networking patents. This pattern suggests WSOU typically pursues licence revenue rather than injunctive relief. The with-prejudice outcome here closes this specific front, though WSOU may hold related patents that remain independently actionable against TP-Link or other networking equipment makers.
PAE — Nokia/Alcatel-Lucent lineageFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | WSOU Investments, LLC | Company | Patent assertion entity — holder of US9226305B2 (wireless device priority technology)Search in Eureka ↗ |
| Defendant | TP-Link Technology Co., Ltd. | Company | TP-Link Technology Co., Ltd. — global manufacturer of consumer and enterprise Wi-Fi networking equipmentSearch in Eureka ↗ |
| Plaintiff counsel | Adam G. Price | Attorney | Counsel for WSOU Investments, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Christopher V. Goodpastor | Attorney | Counsel for WSOU Investments, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Gregory S. Donahue | Attorney | Counsel for WSOU Investments, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Raymond W. Mort , III | Attorney | Counsel for WSOU Investments, LLCSearch in Eureka ↗ |
| Defendant counsel | David M. Hoffman | Attorney | Counsel for TP-Link Technology Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Edward J. Mayle | Attorney | Counsel for TP-Link Technology Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Jeffrey C. Mok | Attorney | Counsel for TP-Link Technology Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | John T. Johnson | Attorney | Counsel for TP-Link Technology Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Kristopher L. Reed | Attorney | Counsel for TP-Link Technology Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Michael F. Autuoro | Attorney | Counsel for TP-Link Technology Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Rishi Gupta | Attorney | Counsel for TP-Link Technology Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Sarah Y. Kamran | Attorney | Counsel for TP-Link Technology Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Steven D. Moore | Attorney | Counsel for TP-Link Technology Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Wesley Ellsworth Overson, Jr | Attorney | Counsel for TP-Link Technology Co., Ltd.Search in Eureka ↗ |
| Presiding judge | Judge Alan D Albright | Chief Judge | Texas Western District Court — Chief JudgeSearch in Eureka ↗ |
Stipulation of dismissal — official text
The order’s language — ‘all claims asserted by Plaintiff WSOU Investments LLC against Defendant TP-Link Technology Co., Ltd. are DISMISSED WITH PREJUDICE, each side to bear its own costs’ — is unambiguous in its finality. The with-prejudice designation forecloses any future action by WSOU on these specific claims against TP-Link. The mutual cost-bearing clause signals a negotiated resolution; had either party prevailed outright, a fee motion under § 285 would typically follow. No financial terms are disclosed.
US9226305B2 — Wireless Data Transmission & Device Priority Scheduling
US9226305B2, filed under application number US13/670552, protects technology for providing data transmission scheduling and device priority to mobile units in a wireless network. The patent’s claims are directed at QoS-type prioritisation mechanisms — specifically how a network controller allocates bandwidth and transmission slots among competing mobile devices. This places it squarely in the LTE/Wi-Fi scheduling domain, a technology space with significant commercial value as AX-class (Wi-Fi 6) and beyond devices proliferate in enterprise and consumer markets.
The patent’s lineage traces to Nokia/Alcatel-Lucent R&D assets acquired by WSOU, a factor that signals the claims may reflect foundational wireless scheduling research rather than incremental design choices. For networking OEMs and chipset vendors, patents in this family represent systemic rather than design-around risk — the core scheduling and prioritisation logic in Wi-Fi 6 and Wi-Fi 7 products is difficult to architect around without engaging the underlying concepts. Competitors operating in the same product space as TP-Link’s Archer AX series should treat this patent family as live enforcement risk.
Should your team run an FTO against US9226305B2?
If your organisation designs, manufactures, or sells Wi-Fi routers, access points, or wireless chipsets with QoS scheduling or device prioritisation features — particularly AX (Wi-Fi 6), BE (Wi-Fi 7), or multi-client MU-MIMO products — US9226305B2 and its family warrant a targeted FTO review. WSOU has demonstrated willingness to assert this patent in federal litigation, and the case duration suggests the claims were not immediately dismissible on invalidity grounds.
PatSnap Eureka’s FTO Search Agent can map the independent and dependent claims of US9226305B2 against your product architecture, flag related continuation and divisional patents in the WSOU/Alcatel-Lucent lineage, and surface prior art that may support an IPR petition. Claim monitoring alerts will notify your team if WSOU or a related entity files new continuation claims in this space — providing early-warning intelligence before any enforcement action is filed.
Run a freedom-to-operate analysis on US9226305B2 to assess your product’s exposure
Run FTO in Eureka →Similar wireless networking patent infringement cases in W.D. Texas
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What this case signals for the wireless networking IP landscape
WSOU’s campaign against TP-Link illustrates how legacy wireless patents continue to generate enforcement risk for consumer networking hardware makers.
Wi-Fi router makers remain high-value targets for wireless patent PAEs
US9226305B2 covers device priority and data transmission scheduling — core functions in any modern Wi-Fi 6/6E router. Manufacturers of AX-class and beyond routers should map their QoS and scheduling implementations against this patent family and related Nokia/Alcatel-Lucent derivatives. The dismissal here does not retire the underlying IP risk from WSOU’s broader portfolio.
Joint dismissals after three years often signal a licensing outcome
When both parties jointly move to dismiss with prejudice and each bears its own fees after prolonged litigation, it is consistent with a confidential settlement or cross-licence. Defendants in similar PAE matters should note that this pattern — extended litigation followed by quiet joint dismissal — is a common PAE exit mechanism, and budget assumptions should account for multi-year exposure.
WSOU v TP-Link — key questions answered
The case was dismissed with prejudice on January 3, 2024. The parties filed a joint motion to dismiss, which Judge Alan D. Albright granted. All claims asserted by WSOU against TP-Link were terminated with prejudice, with each side bearing its own costs, expenses, and attorneys’ fees. WSOU cannot refile the same claims against TP-Link.
WSOU asserted US9226305B2, filed under application number US13/670552. The patent covers technology for providing data transmission and device priority to mobile units in a wireless network — a QoS-related scheduling mechanism. The accused product was the TP-Link Archer AX6000 Next-Gen Wi-Fi Router and substantially similar products.
A dismissal with prejudice is a final adjudication on the merits under Federal Rule of Civil Procedure 41. It permanently bars the plaintiff from refiling a new lawsuit asserting the same patent claims against the same defendant for the same accused products. Unlike a without-prejudice dismissal — which preserves the right to refile — a with-prejudice dismissal is the strongest form of case closure available.
The order directed each side to bear its own costs, expenses, and attorneys’ fees — a mutual arrangement consistent with a negotiated resolution. In patent cases, a prevailing party may seek attorney fees under 35 U.S.C. § 285 in exceptional cases. The absence of a fee award here suggests neither party pursued such a motion, which is typical when cases resolve through confidential settlement before a final judgment on the merits.
WSOU was represented by DiNovo Price LLP and The Mort Law Firm PLLC, with attorneys including Adam G. Price, Christopher V. Goodpastor, Gregory S. Donahue, and Raymond W. Mort III. TP-Link was defended by Fish & Richardson PC and Kilpatrick Townsend & Stockton LLP, with a team including David M. Hoffman, Steven D. Moore, and Wesley Ellsworth Overson Jr., among others.
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