Mobility Workx v. Samsung: Wireless Mobility Patents Settled With Prejudice
Mobility Workx, LLC brought a three-patent infringement action against Samsung Electronics in the Eastern District of Texas, asserting patented technology covering rapid mobility network emulation and proactive wireless resource allocation. The case resolved via a confidential Settlement and License Agreement after 427 days, with dismissal entered with prejudice and each party bearing its own costs.
Three wireless mobility patents resolved via license in E.D. Texas
Mobility Workx, LLC filed suit against Samsung Electronics Co., Ltd. and its U.S. subsidiary Samsung Electronics America, Inc. in the Eastern District of Texas on 2 September 2024, asserting infringement of three patents: US7697508B2, US7231330B2, and US8213417B2. The asserted patents relate to rapid mobility network emulation methods and systems, as well as proactive allocation of wireless communication resources — technology areas central to modern cellular handset and infrastructure performance.
The case was resolved by joint stipulation filed under Federal Rule of Civil Procedure 41(a)(1)(A)(ii), with dismissal entered with prejudice on 3 November 2025. The parties executed a Settlement and License Agreement, the financial terms of which remain confidential. Dismissal with prejudice means Mobility Workx cannot refile the same claims against Samsung, and the license grant suggests Samsung obtained ongoing rights to the asserted technology.
The 427-day duration suggests the parties engaged in meaningful negotiation — likely informed by early claim construction positioning and discovery — before reaching commercial terms. The mutual cost-bearing stipulation is consistent with a negotiated resolution in which neither party conceded liability. The specific royalty structure, license scope, and any ongoing obligations remain undisclosed in the public record.
Filing to Dismissed with Prejudice in 427 days
427 days — above the median time-to-resolution for E.D. Tex. patent cases that settle pre-trial
Settled with prejudice: what the dismissal and license mean for both parties
Rule 41(a)(1)(A)(ii) dismissal with prejudice explained
A stipulated dismissal under Rule 41(a)(1)(A)(ii) requires agreement from all parties and carries the full weight of a final adjudication when entered with prejudice. Unlike a unilateral voluntary dismissal, this mechanism reflects a negotiated endpoint. ‘With prejudice’ bars Mobility Workx from relitigating the same patent claims against Samsung on the same products — the dismissal functions as a permanent resolution of these specific assertions.
Permanent bar on refilingLicense secured — Mobility Workx converts patents to revenue
The reference to a Settlement and License Agreement in the stipulation strongly suggests Mobility Workx received a commercial license fee or royalty arrangement from Samsung. For a patent assertion entity, this is the primary commercial objective. The with-prejudice dismissal indicates Mobility Workx accepted the agreed terms as a full resolution, closing off any future litigation leverage against Samsung on these three patents.
License revenue likely obtainedSamsung obtains freedom to operate under confidential license
Samsung’s agreement to a Settlement and License is consistent with securing cleared rights to the asserted wireless mobility and resource allocation technologies. The mutual cost-bearing arrangement suggests Samsung avoided an adverse ruling while obtaining certainty. The license scope — covering which products, which geographies, and for how long — is not public, but the structure is typical of a negotiated resolution that Samsung’s legal team would assess as commercially preferable to continued litigation risk.
Freedom to operate acquiredWireless mobility IP remains a live licensing risk for device makers
The settlement confirms that Mobility Workx’s patents covering network emulation and proactive resource allocation retain sufficient claim credibility to extract a commercial license from a major global OEM. Other handset manufacturers, chipset vendors, and network equipment suppliers operating in the mobility space should note that these patents were not invalidated — their enforceability was never tested on the merits, meaning they remain available for assertion against third parties.
Patents remain enforceableFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Mobility Workx, LLC | Company | Wireless technology IP licensor — holder of US7697508B2, US7231330B2, and US8213417B2Search in Eureka ↗ |
| Defendant | Samsung Electronics Co., Ltd. | Company | Global consumer electronics and telecommunications hardware manufacturer and its U.S. sales subsidiarySearch in Eureka ↗ |
| Co-Defendant | Samsung Electronics America, Inc. | Company | Search in Eureka ↗ |
| Plaintiff counsel | Daniel B Ravicher | Attorney | Counsel for Mobility Workx, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Zeisler PLLC | Law Firm | Representing Mobility Workx, LLCSearch in Eureka ↗ |
| Defendant counsel | Brianna Lynn Silverstein | Attorney | Counsel for Samsung Electronics Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Christopher J. Burrell | Attorney | Counsel for Samsung Electronics Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Faith Maggard | Attorney | Counsel for Samsung Electronics Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Melissa Richards Smith | Attorney | Counsel for Samsung Electronics Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Timothy E. Grimsrud | Attorney | Counsel for Samsung Electronics Co., Ltd.Search in Eureka ↗ |
| Defendant law firm | Drinker Biddle & Reath LLP (DC) | Law Firm | Representing Samsung Electronics Co., Ltd.Search in Eureka ↗ |
| Defendant law firm | Faegre Drinker Biddle & Reath LLP | Law Firm | Representing Samsung Electronics Co., Ltd.Search in Eureka ↗ |
| Defendant law firm | Faegre Drinker Biddle & Reath, LLP – Minneapolis | Law Firm | Representing Samsung Electronics Co., Ltd.Search in Eureka ↗ |
| Defendant law firm | Gillam & Smith, LLP | Law Firm | Representing Samsung Electronics Co., Ltd.Search in Eureka ↗ |
| Presiding judge | Judge Amos L Mazzant | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The stipulated dismissal references a Settlement and License Agreement as the operative instrument, with the with-prejudice designation serving as the binding mechanism that forecloses future litigation on these claims. The mutual cost-bearing provision — departing from the default rule that costs follow the result — suggests a balanced negotiation in which neither party conceded infringement or validity. The absence of any invalidity finding means all three asserted patents retain their presumption of validity and remain available for assertion against third parties.
US7697508B2, US7231330B2 & US8213417B2 — Wireless Mobility and Resource Allocation
The three asserted patents span two closely related technical domains. US7697508B2 and US7231330B2 (application nos. US10/909818 and US10/909588) relate to rapid mobility network emulation — technology that models and optimises handover behaviour in mobile networks, directly relevant to how devices maintain connectivity while moving between cells. US8213417B2 (application no. US12/718185) covers proactive allocation of wireless communication resources, addressing scheduling and resource management in systems consistent with LTE and emerging 5G architectures.
These patents sit at the intersection of device-level handset performance and network-level infrastructure management — a technology zone actively contested by OEMs, chipset makers, and network operators. The fact that Mobility Workx successfully extracted a license from Samsung, one of the world’s largest smartphone manufacturers, suggests these claims map meaningfully onto commercial implementations. No invalidity finding was entered, leaving the patents in force and available for assertion against other players in the wireless ecosystem.
Should you run an FTO against US7697508B2, US7231330B2, and US8213417B2?
Any company designing, manufacturing, or distributing products that implement LTE or 5G handover logic, mobility network emulation, or dynamic wireless resource allocation should treat these three patents as active freedom-to-operate considerations. The Samsung settlement confirms commercial enforceability without any invalidating decision on the record. Device OEMs, network equipment vendors, chipset designers, and MVNO platform providers are all potentially within claim scope.
PatSnap Eureka’s FTO Search Agent enables R&D and IP teams to run structured claim-by-claim mapping against US7697508B2, US7231330B2, and US8213417B2 in minutes. Eureka identifies prior art, flags independent claim elements most likely to read on your product architecture, and surfaces related litigation history for Mobility Workx’s full portfolio — giving your team the analytical foundation to make a defensible clearance decision before product launch or market entry.
Run a freedom-to-operate analysis on US7697508B2 to assess your product’s exposure
Run FTO in Eureka →Similar wireless mobility patent cases in the Eastern District of Texas
Cases involving wireless mobility, handover, and resource allocation patents litigated in the Eastern District of Texas against major consumer electronics OEMs.
What this case signals for the wireless mobility IP landscape
A settled license against Samsung confirms the commercial leverage of mobility network patents in E.D. Texas — even against tier-one defendants.
E.D. Texas remains a credible venue for wireless patent assertion
Judge Mazzant’s docket in the Eastern District of Texas continues to attract patent assertion cases against major electronics OEMs. The 427-day timeline to settlement here is consistent with cases that reach advanced pleading or early discovery stages before licensing discussions mature. Patent holders in the wireless space should view E.D. Texas as a viable enforcement forum.
With-prejudice settlement limits future assertion — monitor license scope carefully
Competitors and licensees operating in the same technology space as Samsung should note that while Mobility Workx cannot refile against Samsung, the patents themselves survive. Any company making, selling, or importing products that implement rapid mobility network methods or proactive wireless resource allocation should assess their exposure to these three patents independently.
Mobility v Samsung — key questions answered
Mobility Workx asserted three patents: US7697508B2, US7231330B2, and US8213417B2. These cover rapid mobility network emulation methods and systems, and proactive allocation of wireless communication resources — technology relevant to LTE and 5G device and network performance.
The case was resolved by joint stipulation of dismissal with prejudice filed under Federal Rule of Civil Procedure 41(a)(1)(A)(ii), reflecting execution of a confidential Settlement and License Agreement. Each party agreed to bear its own costs, expenses, and attorneys’ fees. The case closed on 3 November 2025.
No. The with-prejudice dismissal resolves the dispute between these specific parties but does not adjudicate validity or invalidity of US7697508B2, US7231330B2, or US8213417B2. All three patents retain their statutory presumption of validity and remain available for assertion against other parties.
Dismissal with prejudice in a patent settlement context means the plaintiff — here Mobility Workx — permanently relinquishes the right to reassert the same claims against the same defendant on the same accused products. It does not affect the patent’s enforceability against third parties, nor does it constitute a finding on infringement or validity.
The Eastern District of Texas, and specifically Judge Mazzant’s court, has historically been a plaintiff-favourable venue for patent assertion cases due to its experienced patent bench, established local rules, and track record of manageable docket timelines. Patent assertion entities like Mobility Workx frequently select E.D. Texas when asserting wireless and telecommunications patents against major OEMs.
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