Safety Direct v. T-Mobile: Smartwatch Patent Suit Dismissed With Prejudice in 161 Days
Safety Direct LLC brought a patent infringement action against T-Mobile in the Western District of Washington, asserting US10115292B2 in connection with the Timex FamilyConnect smartwatch. The case closed in under six months when Safety Direct filed a voluntary dismissal with prejudice before T-Mobile had filed any responsive pleading, permanently extinguishing all asserted claims.
Smartwatch Patent Claim Against T-Mobile Ends Before Defense Is Filed
Safety Direct LLC, asserting US10115292B2, filed suit against T-Mobile in the U.S. District Court for the Western District of Washington on December 14, 2023. The patent-in-suit, identified by application number US15/494548, covers technology implicated in the Timex FamilyConnect and Timex FamilyConnect v1 smartwatches. The action was brought as a standard infringement claim targeting T-Mobile’s involvement with those products.
The case closed on May 23, 2024 — 161 days after filing — when Safety Direct invoked Federal Rule of Civil Procedure 41(a)(1)(A)(i) to file a unilateral voluntary dismissal with prejudice. Because T-Mobile had not yet served an answer or motion for summary judgment, no court order was required. The dismissal with prejudice permanently bars Safety Direct from re-asserting any claims it raised or could have raised in this action against T-Mobile. Each party bears its own costs and attorneys’ fees.
A dismissal at this stage — before any responsive pleading — is procedurally unremarkable, yet the with-prejudice designation is notable: Safety Direct voluntarily surrendered its right to refile, which goes beyond the default that FRCP 41 would otherwise provide. The public record does not disclose whether a private settlement was reached, whether claim analysis revealed a weakness in the infringement theory, or whether commercial considerations drove the decision. The choice of with-prejudice terms, however, suggests the parties may have reached a resolution that made permanent closure preferable to preserving any future litigation option.
Filing to Voluntary dismissal in 161 days
161 days — closed before defendant filed an answer or dispositive motion
Dismissed with prejudice: what this voluntary exit means for both parties
FRCP 41(a)(1)(A)(i): unilateral dismissal before any responsive pleading
Under Rule 41(a)(1)(A)(i), a plaintiff may dismiss an action without a court order by filing a notice before the defendant serves an answer or motion for summary judgment. Safety Direct exercised this right and added a with-prejudice designation, which converts what would be a default without-prejudice dismissal into a final adjudication on the merits — permanently closing the door on these specific claims against T-Mobile.
FRCP 41(a)(1)(A)(i)With prejudice: the distinction that matters here
A voluntary dismissal without prejudice allows a plaintiff to refile later; with prejudice does not. Safety Direct specifically elected the with-prejudice designation, meaning all infringement claims it raised — or could have raised — against T-Mobile based on US10115292B2 are permanently extinguished. The basis of termination lists only ‘Voluntary dismissal’ without elaborating on the reason; the public record is silent on whether a private agreement underpinned this election.
Permanent bar on refilingT-Mobile exits with full immunity from this patent claim
T-Mobile secured a with-prejudice dismissal without filing a single defensive pleading, incurring no adverse finding and no fee award against it. The dismissal gives T-Mobile permanent protection against any future suit by Safety Direct on US10115292B2 for the same accused products and conduct. Perkins Coie’s engagement may have contributed to a swift resolution, though the public record does not confirm the precise sequence of events.
Full immunity, no costs awardedPre-answer exits signal early leverage dynamics in NPE smartwatch litigation
Cases dismissed with prejudice this early — before any responsive pleading — can indicate a pre-litigation or early-stage settlement, a licensing resolution, or a plaintiff’s recognition that the case lacks the strength to proceed. For companies distributing connected wearables through carrier channels, this pattern is consistent with the use of litigation as a negotiation instrument. Other defendants facing similar NPE assertions on wearable/IoT patents should note that pre-answer resolution is a realistic and commercially effective outcome.
NPE wearable patent litigation patternFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Safety Direct, LLC | Company | Patent assertion entity — holder of US10115292B2 relating to smartwatch location/communication technologySearch in Eureka ↗ |
| Defendant | T-Mobile | Individual | T-Mobile US, Inc. — major U.S. wireless carrier and retail distributor of consumer connected devicesSearch in Eureka ↗ |
| Plaintiff counsel | Karthik K. Murthy | Attorney | Counsel for Safety Direct, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Murthy Patent Law, Inc. | Law Firm | Representing Safety Direct, LLCSearch in Eureka ↗ |
| Defendant counsel | Ryan McBrayer | Attorney | Counsel for T-MobileSearch in Eureka ↗ |
| Defendant law firm | Perkins Coie LLP | Law Firm | Representing T-MobileSearch in Eureka ↗ |
| Presiding judge | Judge Kymberly K. Evanson | Judge | Washington Western District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal notice is explicit on all material terms: with-prejudice designation, FRCP 41(a)(1)(A)(i) as the procedural vehicle, the pre-answer posture, mutual cost-bearing, and immediate effectiveness. The breadth of the claim bar — covering all claims ‘raised or could have raised’ — reflects standard with-prejudice language that courts treat as res judicata. Notably, T-Mobile is identified in the notice as ‘T-Mobile US, Inc.’, confirming the corporate entity. The absence of any court-ordered condition suggests no judicial involvement was required or sought.
US10115292B2 — Timex FamilyConnect smartwatch location and communication technology
US10115292B2, filed under application number US15/494548, is the sole patent asserted in this action. It covers technology implicated by the Timex FamilyConnect and FamilyConnect v1 smartwatches — devices designed for family communication and child location monitoring via a cellular or connected network. The patent sits at the intersection of consumer wearables and connected-device communication, a space that has seen significant patent activity as smartwatch functionality has expanded.
The commercial significance of this patent stems from its relevance to a growing category: family-oriented connected wearables distributed through carrier retail channels. T-Mobile’s role as a carrier-distributor illustrates how patent risk in this space can extend beyond the device manufacturer to any entity in the distribution chain. The patent has not been adjudicated or invalidated in this proceeding, meaning its enforceability against other parties in the wearables and IoT space remains an open question that competitors and distributors should monitor closely.
Should you run an FTO against US10115292B2?
Any company manufacturing, distributing, or providing connectivity for family-connected smartwatches or similar child-monitoring wearable devices should treat US10115292B2 as a live risk. This patent was not invalidated or found unenforceable in Safety Direct v. T-Mobile — the case ended on procedural terms. R&D and product teams developing features related to location tracking, family communication, or cellular-connected wearables should assess whether their implementations fall within the claim scope of this patent before product launch or carrier partnerships.
PatSnap Eureka’s FTO Search Agent can map the claim landscape of US10115292B2 against your product specifications, flag potential overlap with prosecution history, and surface related prior art or family patents that may affect freedom to operate. For in-house counsel advising on new wearable or IoT product lines distributed through carrier channels, Eureka can accelerate the FTO process and generate auditable reports for licensing negotiations or product redesign decisions.
Run a freedom-to-operate analysis on US10115292B2 to assess your product’s exposure
Run FTO in Eureka →Similar smartwatch and connected wearable patent cases in U.S. district courts
Cases involving connected wearable and family smartwatch patents in U.S. district courts, including the Western District of Washington, with comparable NPE plaintiff profiles.
What this case signals for the connected wearables and carrier IP landscape
A pre-answer dismissal with prejudice against a major carrier raises pointed questions for IoT patent holders and device distributors alike.
Carriers and distributors face smartwatch patent exposure at the retail layer
T-Mobile was targeted as a distributor of the Timex FamilyConnect smartwatch, not as its manufacturer. This signals that patent assertions in the wearables/IoT space can attach to carriers and retailers, not just OEMs. Companies in the distribution chain should audit their indemnification agreements and conduct FTO reviews on connected devices they carry.
With-prejudice voluntary exits typically signal something more than a change of heart
Patent plaintiffs rarely surrender refiling rights without a reason. A with-prejudice dismissal before any answer is filed most commonly suggests a private licensing agreement, a settlement, or a significant strategic concession. IP teams monitoring Safety Direct’s portfolio should track whether licensing activity follows similar cases involving US10115292B2.
Safety v T-Mobile — key questions answered
Safety Direct LLC voluntarily dismissed its patent infringement action against T-Mobile with prejudice on May 23, 2024, under FRCP 41(a)(1)(A)(i). The case was filed December 14, 2023 and lasted 161 days. T-Mobile had not filed an answer or motion for summary judgment. Each party bears its own costs.
Safety Direct asserted US10115292B2 (application number US15/494548), a patent covering technology implicated by the Timex FamilyConnect and Timex FamilyConnect v1 smartwatches — devices combining family communication and location tracking features distributed via carrier retail channels.
A with-prejudice dismissal permanently bars Safety Direct from refiling any claims it raised or could have raised against T-Mobile based on US10115292B2 arising from this action. The patent itself is not invalidated, but Safety Direct cannot pursue T-Mobile again on these specific claims and conduct.
No. The case ended via voluntary dismissal with prejudice before T-Mobile filed any responsive pleading. There was no substantive adjudication of validity or enforceability. US10115292B2 remains an issued, enforceable patent subject to challenge by other parties through IPR or future litigation.
The dismissal notice states each party will bear its own costs, expenses, and attorneys’ fees. No fee award was made against either party. The mutual cost-bearing arrangement is standard for voluntary early dismissals under FRCP 41(a)(1)(A)(i) where no court order is required.
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