Songbird Tech v. TCL Technology: Voluntary Dismissal After 113 Days
Songbird Tech LLC filed a patent infringement action against TCL Technology Group in the Western District of Texas, asserting US8825787B2 against the BlackBerry Q5. Before TCL filed any answer or dispositive motion, Songbird voluntarily dismissed all claims without prejudice — leaving the door open for future enforcement action.
Early voluntary exit before TCL could respond: a reset or a retreat?
In December 2024, Songbird Tech LLC initiated a patent infringement action in the Western District of Texas, Case No. 6:24-cv-00618, asserting US8825787B2 against TCL Technology Group Corp. The accused product was the BlackBerry Q5, a mobile device that TCL has distributed under the BlackBerry brand. The case was assigned to Judge Kathleen Cardone and was represented on the plaintiff side by Raymond W. Mort III of The Mort Law Firm PLLC.
The case closed on 27 March 2025, just 113 days after filing. Songbird filed a Notice of Voluntary Dismissal (ECF No. 8) while TCL had not yet filed an answer or a motion for summary judgment. Under Rule 41(a)(1)(A)(i) of the Federal Rules of Civil Procedure, such a dismissal is effective as of right and requires no court order. The court’s order confirmed all claims against TCL were dismissed without prejudice, meaning Songbird retains the legal right to re-file substantially the same claims in the future.
A resolution of 113 days — before the defendant had even formally appeared on the merits — is consistent with early-stage patent actions that end in licensing discussions, strategic reassessment, or refiling in a different venue. The absence of any defendant law firm or agent on the record suggests TCL may have engaged informally. What drove the dismissal — a licensing resolution, a decision to refile, or a litigation strategy recalibration — remains unknown from the public docket.
Filing to Voluntary dismissal in 113 days
113 days — resolved before defendant answered or moved for summary judgment
Voluntarily dismissed: what the Rule 41 exit means for both parties
Rule 41(a)(1)(A)(i): dismissal as of right, no court approval needed
Under Rule 41(a)(1)(A)(i), a plaintiff may dismiss an action without a court order by filing a notice of voluntary dismissal before the defendant serves an answer or a motion for summary judgment. Because TCL had filed neither, Songbird’s notice was self-executing. The court’s order was confirmatory, not dispositive. This procedural pathway is the lowest-friction exit available to a plaintiff in federal litigation.
Rule 41(a)(1)(A)(i) — no court order requiredWithout prejudice confirmed — but the public record says nothing more
The court’s order expressly states the dismissal is without prejudice, meaning Songbird Tech retains the right to refile the same infringement claims against TCL — subject to applicable statutes of limitations. Rule 41(a)(1) dismissals are without prejudice by default unless stated otherwise. Whether the parties reached a licensing arrangement or whether Songbird intends to refile in a different venue is not disclosed in the public docket. Practitioners should treat the matter as potentially live.
Refiling rights preservedTCL exits without a merits ruling — no res judicata shield
TCL Technology obtains no merits-based adjudication from this dismissal. Because the case ended without prejudice, TCL cannot invoke res judicata or claim preclusion to block a future Songbird action on US8825787B2. The absence of any defendant counsel on the record is notable and may suggest informal engagement. TCL should treat this patent as an ongoing enforcement risk unless a license or formal settlement has been secured.
No preclusion — future suit possibleBlackBerry Q5 IP exposure remains live for TCL and the broader mobile sector
The without-prejudice exit means US8825787B2 remains an active enforcement asset for Songbird. Other mobile device manufacturers and distributors operating in overlapping product categories should note that the patent has not been invalidated, narrowed, or licensed on the public record. Companies developing or distributing mobile devices with communication features covered by this patent family should consider a proactive FTO assessment.
Patent enforcement risk persistsFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Songbird Tech LLC | Company | Patent assertion entity — holder of US8825787B2, mobile device communication technologySearch in Eureka ↗ |
| Defendant | TCL Technology Group, Corp. | Company | TCL Technology Group Corp. — global consumer electronics manufacturer, BlackBerry device distributorSearch in Eureka ↗ |
| Plaintiff counsel | Raymond W. Mort , III | Attorney | Counsel for Songbird Tech LLCSearch in Eureka ↗ |
| Plaintiff law firm | The Mort Law Firm PLLC | Law Firm | Representing Songbird Tech LLCSearch in Eureka ↗ |
| Presiding judge | Judge Kathleen Cardone | Judge | Texas Western District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order is explicitly confirmatory rather than adjudicative: it recites that TCL had filed neither an answer nor a summary judgment motion, triggering the self-executing mechanism under Rule 41(a)(1)(A)(i). The without-prejudice designation is the procedural default under this rule and carries significant commercial weight — Songbird’s infringement claims against TCL on US8825787B2 remain legally viable. No finding on validity, infringement, or claim scope was made, and neither party is bound by any merits determination from this proceeding.
US8825787B2 — mobile device communication technology
US8825787B2 (application number US13/898475) is a granted US utility patent asserted against the BlackBerry Q5, a physical-keyboard Android smartphone distributed by TCL under the BlackBerry brand. The patent sits within the mobile device communication and data exchange domain. The application filing date associated with US13/898475 places this patent in the smartphone technology era when mobile messaging architectures were actively being patented, suggesting coverage of a foundational communication feature rather than a peripheral one.
From a competitive intelligence standpoint, the assertion of this patent against a specific BlackBerry-branded device suggests Songbird Tech views the covered technology as broadly applicable to mobile hardware or software implementations common across multiple OEM product lines. Any manufacturer or distributor of devices with comparable communication functionality — particularly those offering physical keyboard or messaging-optimised smartphone form factors — faces potential exposure. The patent’s survival of this litigation without any validity challenge on record strengthens its near-term enforcement posture.
Should you run an FTO analysis against US8825787B2?
If your organisation designs, manufactures, or distributes mobile devices — particularly those with messaging-optimised features, physical keyboards, or communication architectures similar to the BlackBerry Q5 — US8825787B2 warrants inclusion in any freedom-to-operate review. The patent has not been challenged at the PTAB, narrowed through claim construction, or licensed on the public record. Its enforceability is intact, and the without-prejudice dismissal confirms the patentee’s willingness to litigate.
PatSnap Eureka’s FTO Search Agent can map the claim scope of US8825787B2 against your product specifications, identify prosecution history estoppel issues, surface prior art that could support an IPR petition, and flag related continuation or divisional applications in the Songbird portfolio. For product teams preparing device launches in the mobile communication space, running this analysis now is materially cheaper than defending an infringement action in the Western District of Texas.
Run a freedom-to-operate analysis on US8825787B2 to assess your product’s exposure
Run FTO in Eureka →Similar patent infringement cases in mobile device technology
Explore related patent infringement actions asserting mobile device communication patents in the Western District of Texas and comparable venues.
What this case signals for the mobile device IP enforcement landscape
A Rule 41 exit before any defendant response is rarely the end of the story — here is what IP teams should watch.
Without-prejudice dismissals in W.D. Tex. are a known pre-litigation tactic
The Western District of Texas remains a favored venue for patent assertion entities. A rapid voluntary dismissal before defendant response can signal an out-of-court licensing resolution, a decision to refile in a more favorable venue, or a case theory recalibration. IP teams monitoring TCL or BlackBerry-branded device disputes should track any refiling activity against this docket.
US8825787B2 has not been invalidated — enforcement risk for mobile OEMs persists
Because the case ended without a merits ruling, US8825787B2 emerges from this litigation with full enforceability intact. Mobile device manufacturers and distributors whose products share functional characteristics with the BlackBerry Q5 should not assume this patent has been neutralised. A proactive FTO or IPR strategy assessment is warranted for in-scope product teams.
Songbird v TCL — key questions answered
Songbird Tech LLC filed a patent infringement action against TCL Technology Group in the Western District of Texas in December 2024, asserting US8825787B2 against the BlackBerry Q5. Before TCL filed an answer or summary judgment motion, Songbird voluntarily dismissed all claims without prejudice under Rule 41(a)(1)(A)(i). The case closed on 27 March 2025 after 113 days, with no merits adjudication.
A without-prejudice dismissal means Songbird Tech retains the right to refile substantially the same patent infringement claims against TCL in the future, subject to applicable statutes of limitations. TCL receives no res judicata or claim preclusion protection from this outcome. The dismissal does not constitute any finding on patent validity or infringement scope.
US8825787B2 (application US13/898475) is a granted US utility patent asserted in connection with the BlackBerry Q5 mobile device. It falls within the mobile device communication and data exchange technology domain. As of the case record, the patent has not been subject to any PTAB invalidity challenge or published claim construction ruling, leaving its scope and enforceability intact.
The public record does not disclose the reason for the early dismissal. Possibilities consistent with this pattern include: an out-of-court licensing agreement, a decision to refile in a different venue or against different defendants, or a recalibration of litigation strategy. The absence of any defendant counsel on the docket may suggest informal engagement prior to formal case activity, but this is not confirmed by the public record.
Companies manufacturing or distributing mobile devices with communication features potentially overlapping US8825787B2’s claim scope should consider a freedom-to-operate analysis against this patent, particularly given that it survived this litigation with full enforceability intact. An IPR petition assessment is also worth evaluating if the product risk is material, as the patent has not yet faced a PTAB challenge on the record.
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