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Volteon LLC v. TCL Technology Group — Mobile Camera & Battery Patent Dispute | PatSnap
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Case ID2:23-cv-00138
FiledMar 2023
ClosedNov 2024
Patent Litigation

Volteon LLC v. TCL Technology Group: Four-Patent Mobile Camera Suit Dismissed With Prejudice

Volteon LLC filed suit against TCL Technology Group and six affiliated entities in the Eastern District of Texas, asserting four patents covering multi-camera smartphones and rechargeable battery systems, targeting TCL’s 30 5G handset. The case was voluntarily dismissed with prejudice after 609 days, with each party bearing its own costs.

Resolution time
609days
609 days — above average for E.D. Texas patent cases that resolve without trial
Patents asserted
4
US10986259B2, US10999484B2, US10695922B2, and US10958819B2 — multi-camera mobile phone and rechargeable battery patents
Outcome
Voluntary dismissal
Voluntary dismissal with prejudice under Rule 41(a)(1)(A)(i); Volteon cannot refile these claims against TCL
Cost ruling
Costs: Each Party Bears Own
Court order specifies each party bears its own costs, expenses, and attorneys’ fees — no fee-shifting award
Published by PatSnap Insights Team · Verified by PatSnap Eureka Data
Case overview

Patent troll or legitimate enforcer? A 609-day mobile IP dispute ends quietly

On March 29, 2023, Volteon LLC filed an infringement action against TCL Technology Group Corp. and six TCL-affiliated entities in the Eastern District of Texas before Judge Rodney Gilstrap. The complaint asserted four US patents — US10986259B2, US10999484B2, US10695922B2, and US10958819B2 — covering multi-camera smartphone technology and rechargeable battery systems, with TCL’s 30 5G handset identified as the accused product.

The case concluded on November 27, 2024, when Volteon filed a Notice of Voluntary Dismissal With Prejudice under Federal Rule of Civil Procedure 41(a)(1)(A)(i). Judge Gilstrap accepted and acknowledged the dismissal, closing all claims against all TCL defendants with prejudice. Critically, the court directed each party to bear its own costs, expenses, and attorneys’ fees, suggesting no financial settlement term was memorialised in the court order — though private commercial terms cannot be ruled out.

The 609-day duration before dismissal is notable: the case ran long enough to progress through substantive motion practice and potentially claim construction before resolution. The voluntary dismissal with prejudice — rather than a stipulated dismissal — suggests Volteon acted unilaterally, which is consistent with either a confidential settlement or a strategic decision to abandon the claims. The absence of a fee-shifting order is commercially significant: TCL did not obtain an ‘exceptional case’ finding under 35 U.S.C. § 285, which would have signalled a stronger defensive outcome.

Case at a glance
Case no.2:23-cv-00138
PlaintiffVolteon, LLC
CourtTexas Eastern
JudgeRodney Gilstrap
FiledMarch 29, 2023
ClosedNovember 27, 2024
Duration609 days
OutcomeVoluntary dismissal
Verdict causeInfringement Action
BasisVoluntary dismissal
Prior Art Intelligence
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Case timeline

Filing to Voluntary dismissal in 609 days

609 days — above average for E.D. Texas patent cases that resolve without trial

Case timeline: Complaint filed MAR 29 2023, JAN–FEB — 609 days total Horizontal timeline showing the three key events in Volteon, LLC v TCL Technology Group, Corp. from filing to resolution. Source: PACER, Texas Eastern District Court. MAR 29 2023 Complaint filed Pre-trial proceedings NOV 27 2024 Voluntary dismissal 609 DAYS TOTAL
Dismissal terms

Dismissed with prejudice: what Volteon’s Rule 41 filing means for both sides

Legal mechanism

Rule 41(a)(1)(A)(i): plaintiff-initiated dismissal, no court consent needed

Under FRCP 41(a)(1)(A)(i), a plaintiff may voluntarily dismiss an action without a court order by filing a notice before the opposing party serves an answer or motion for summary judgment. Here, Volteon elected dismissal with prejudice — a stricter standard than the default — meaning the court treated the dismissal as a final adjudication on the merits. Judge Gilstrap accepted and acknowledged the notice, formally closing the case.

Voluntary, plaintiff-initiated
Finality analysis

With prejudice: Volteon is permanently barred from re-asserting these patents against TCL

A dismissal with prejudice operates as a final judgment on the merits. Volteon cannot refile these four patent claims against TCL Technology Group or any of the six named co-defendants in any US federal court. This is a materially stronger outcome for TCL than a dismissal without prejudice, which would have left Volteon free to refile. The public record does not disclose whether a private settlement agreement underlies this dismissal — that possibility cannot be excluded.

Permanent bar on refiling
Defendant outcome

TCL avoids liability but bears its own legal costs — no § 285 fee award

TCL and its affiliates are fully released from Volteon’s claims with no findings of infringement on record. However, the court’s order that each party bear its own costs means TCL did not secure an ‘exceptional case’ award under 35 U.S.C. § 285, which would have required Volteon to reimburse TCL’s attorneys’ fees. This is a common outcome in PAE-driven cases resolved before trial, and suggests TCL’s litigation spend — potentially substantial over 609 days — is unrecovered.

No fee recovery for TCL
Commercial implications

Four patents remain enforceable — Volteon may pursue other smartphone OEMs

The dismissal with prejudice resolves only the claims against TCL. Volteon’s four patents — covering multi-camera and rechargeable battery technology for mobile devices — remain in force and could be asserted against other smartphone manufacturers. Companies with products in the multi-camera handset space should note that this case does not extinguish the underlying IP. The lack of any invalidity or non-infringement ruling on the merits means the patents carry no court-imposed limitation from this litigation.

Patents remain live; other OEMs at risk
Legal analysis based on PACER docket records for case 2:23-cv-00138 and PatSnap Eureka litigation intelligence Search PatSnap Eureka ↗
Parties and representation

Full party and counsel information

RoleNameTypeDetail
PlaintiffVolteon, LLCCompanyPatent assertion entity — holder of US10986259B2 and three further mobile technology patentsSearch in Eureka ↗
DefendantTCL Technology Group, Corp.CompanyTCL Technology Group Corp. and six affiliated TCL entities; manufacturer of the accused TCL 30 5G smartphoneSearch in Eureka ↗
Co-DefendantHuizhou TCL Mobile Communication Company LimitedCompanySearch in Eureka ↗
Co-DefendantTCT Mobile International LimitedIndividualSearch in Eureka ↗
Co-DefendantTCL Electronics Holdings LimitedCompanySearch in Eureka ↗
Co-DefendantTCL Communication, Ltd.CompanySearch in Eureka ↗
Co-DefendantTCL Mobile Communication (HK) Company LimitedCompanySearch in Eureka ↗
Co-DefendantTCL Communication Technology Holdings LimitedCompanySearch in Eureka ↗
Plaintiff counselIsaac Phillip RabicoffAttorneyCounsel for Volteon, LLCSearch in Eureka ↗
Plaintiff counselJohn Andrew RubinoAttorneyCounsel for Volteon, LLCSearch in Eureka ↗
Plaintiff counselJustin Kurt TrueloveAttorneyCounsel for Volteon, LLCSearch in Eureka ↗
Plaintiff counselMichael Mondelli , IIIAttorneyCounsel for Volteon, LLCSearch in Eureka ↗
Plaintiff law firmRabicoff Law LLCLaw FirmRepresenting Volteon, LLCSearch in Eureka ↗
Plaintiff law firmRubino IpLaw FirmRepresenting Volteon, LLCSearch in Eureka ↗
Plaintiff law firmRubino Law LLCLaw FirmRepresenting Volteon, LLCSearch in Eureka ↗
Plaintiff law firmTruelove Law FirmLaw FirmRepresenting Volteon, LLCSearch in Eureka ↗
Defendant counselDonald R. McPhailAttorneyCounsel for TCL Technology Group, Corp.Search in Eureka ↗
Defendant law firmMerchant & Gould PCLaw FirmRepresenting TCL Technology Group, Corp.Search in Eureka ↗
Presiding judgeJudge Rodney GilstrapJudgeTexas Eastern District CourtSearch in Eureka ↗
Official verdict

Official order — verbatim text

“Before the Court is the Notice of Voluntary Dismissal with Prejudice (the “Notice”) filed by Plaintiff Volteon LLC. (Dkt. No. 63.) In the Notice, Plaintiff voluntarily dismisses Member Case No. 2:23-cv-00138-JRG, Volteon LLC v. TCL Technology Group Corp., et al., with prejudice pursuant to Rule 41(a)(1)(A)(i) of the Federal Rules of Civil Procedure. (Id.) Having considered the Notice, the Court ACCEPTS AND ACKNOWLEDGES that all claims by Plaintiff against Defendants are DISMISSED WITH PREJUDICE. Each party is to bear its own costs, expenses, and attorneys’ fees. All pending requests for relief not explicitly granted herein are DENIED AS MOOT. The Clerk of Court is directed CLOSE this case.”
Source: PACER Docket, Case 2:23-cv-00138, Texas Eastern District Court

The court’s order accepting Volteon’s Rule 41(a)(1)(A)(i) notice is terse and procedural, but commercially consequential in three respects. First, the with-prejudice designation converts a plaintiff’s voluntary act into a final merits bar — Volteon is permanently foreclosed from reasserting these claims against TCL. Second, the symmetrical costs order — each party bears its own — is a neutral commercial outcome, neither rewarding TCL’s defence nor penalising Volteon’s prosecution. Third, the denial of all pending relief as moot suggests open motions remained at the time of dismissal, consistent with a case still in active litigation when resolution was reached.

PACER case 2:23-cv-00138 · Public docket record Explore in Eureka ↗
Patent at issue

US10986259B2 and three further patents — multi-camera mobile phones and rechargeable battery systems

Publication No.US10986259B2
Application No.US17/094860
Patent details
ProductMulti-camera mobile phone imaging and switching technology
Cited in actionMarch 29, 2023

Publication No.US10999484B2
Application No.US17/094876
Patent details
ProductMobile phone camera control and image capture systems
Cited in actionMarch 29, 2023

Publication No.US10695922B2
Application No.US13/893976
Patent details
ProductRechargeable battery charging circuit and power management for mobile devices
Cited in actionMarch 29, 2023

Publication No.US10958819B2
Application No.US16/867970
Patent details
ProductMobile phone camera and battery integration technology
Cited in actionMarch 29, 2023

The four asserted patents span two technology clusters. US10986259B2 and US10999484B2 relate to multi-camera smartphone configurations — covering aspects of camera selection, switching, and image capture across multiple lens arrays, directly relevant to the TCL 30 5G’s camera system. US10695922B2 and US10958819B2 address rechargeable battery technology applicable to mobile devices. The application numbers (US17/094860, US17/094876, US16/867970, and US13/893976) span a range of filing vintages, with US13/893976 suggesting an earlier priority date that could broaden claim scope.

Multi-camera patents have become a high-value enforcement category as virtually every mid-range and flagship Android handset now ships with three or more rear cameras. Patents covering switching logic, computational photography pipelines, or charging circuits that are standard across OEM product lines create broad assertion surface. The TCL 30 5G was the named accused product, but the underlying technology is architecturally common to dozens of handsets. Any manufacturer shipping multi-camera Android devices should treat this patent family as a live FTO concern, particularly given the absence of any invalidity finding in this proceeding.

Patent data sourced from USPTO via PatSnap Eureka patent database Search patent records in Eureka ↗
Freedom to operate

Should your product team run an FTO against US10986259B2 and the Volteon portfolio?

If your organisation manufactures, imports, or sells multi-camera smartphones or tablets in the US market, these four patents warrant direct FTO analysis. The TCL 30 5G was the accused product here, but the claimed technology — multi-camera control and rechargeable battery management — is architecturally standard across mid-range Android handsets. The absence of any invalidity ruling from this case means competitors cannot rely on this litigation as clearing prior art or claim scope. The earliest priority date in this family (US13/893976, filed 2013) suggests potentially broad claim coverage predating many current product architectures.

PatSnap Eureka’s FTO Search Agent can map your product’s camera switching logic and battery management specifications directly against the independent claims of US10986259B2, US10999484B2, US10695922B2, and US10958819B2. Eureka’s claim chart generation identifies where your product’s feature set overlaps with asserted claim language, flags design-around options, and surfaces prior art references that were not litigated in this case — giving your IP and R&D teams a defensible clearance position before Volteon or a successor entity files.

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Related litigation

Similar multi-camera and mobile device patent cases in E.D. Texas

Explore patent infringement actions involving multi-camera smartphone technology and rechargeable battery patents litigated before Judge Gilstrap in the Eastern District of Texas.

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Volteon, LLC patent enforcement history, Texas Eastern case history, Volteon, LLC’s full IP portfolio, and comparable case analysis
PAE mobile patent suits E.D. TexasTCL patent litigation historyMulti-camera patent assertions 2023–24Volteon LLC related cases
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Strategic implications

What this case signals for the mobile handset IP enforcement landscape

PAE-driven multi-patent assertions in E.D. Texas continue to resolve quietly — but the IP risk to smartphone OEMs does not disappear with each dismissal.

With-prejudice dismissals do not invalidate the underlying patents

Volteon’s four patents survive this case intact. No claim was found invalid or not infringed on the merits. Smartphone OEMs and component suppliers should treat these patents as active enforcement risk — particularly US10986259B2 and US10999484B2 covering multi-camera configurations common across mid-range Android handsets.

E.D. Texas + PAE + multi-defendant structure is a high-pressure litigation template

Volteon named seven TCL entities simultaneously — a structural choice that maximises jurisdictional reach and settlement pressure. This pattern is consistent with assertion entity strategy in E.D. Texas. OEMs facing similar multi-entity complaints should assess each defendant’s connection to the forum early to challenge venue and personal jurisdiction before investing in full merits defence.

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Full strategic analysis in PatSnap Eureka
Unlock deeper analysis of Volteon’s mobile patent enforcement strategy and E.D. Texas district court risk signals for smartphone OEMs.
Claim construction risk mapVolteon’s assertion history§ 285 exposure analysis
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Frequently asked questions

Volteon v TCL — key questions answered

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