Zeppelin Corp v. Verizon: Infringement Claim Dismissed Without Prejudice in 103 Days
Zeppelin Corporation filed a patent infringement action against Verizon Communications and Cellco Partnership in the Eastern District of Texas, asserting US10313630B2 — a patent relating to mobile phones with fluorescent substances. The case closed just 103 days after filing, with all claims dismissed without prejudice under Rule 41(a)(1)(A)(i).
Infringement action against Verizon exits E.D. Texas in 103 days
On 18 May 2023, Zeppelin Corporation filed a patent infringement action in the Eastern District of Texas (Case No. 4:23-cv-00454) against Verizon Communications, Inc. and its subsidiary Cellco Partnership d/b/a Verizon Wireless. The asserted patent, US10313630B2 (Application No. US15/475123), covers technology relating to mobile phones with fluorescent substances. The case was assigned to Judge Amos L. Mazzant.
The case ended on 29 August 2023 when Zeppelin filed a Notice of Dismissal Without Prejudice (Dkt. #11). The Court reviewed the notice and, pursuant to Rule 41(a)(1)(A)(i), ordered all claims against both defendants dismissed without prejudice. The recorded Basis of Termination is 'Dismissed without Prejudice.' Each party was ordered to bear its own costs, expenses, and attorney's fees — no financial award was entered for either side.
The 103-day lifespan from filing to dismissal suggests the action was resolved before any substantive motion practice or claim construction proceedings. A voluntary dismissal without prejudice leaves Zeppelin free to refile against Verizon or other parties in a different forum or at a later date. The specific factors that prompted Zeppelin to withdraw at this early stage are not disclosed in the available public record.
See Complete Case & Patent Analysis →Filing to Dismissed without Prejudice in 103 days
103 days from filing to dismissal — a notably short lifespan for E.D. Texas patent litigation
US10313630B2 — Mobile phone with fluorescent substances
Any company designing, manufacturing, distributing, or selling mobile devices that incorporate fluorescent substances — or carriers offering such devices — should consider a targeted freedom-to-operate review against US10313630B2. The patent has been asserted in federal litigation against one of the largest U.S. carriers, and the without-prejudice dismissal means enforcement action could resume or be directed at new defendants. Device OEMs and component suppliers are particularly exposed.
Official order — verbatim text
The court's order confirms a Rule 41(a)(1)(A)(i) voluntary dismissal without prejudice, entered on Zeppelin's own notice with no opposing consent required at that procedural stage. The order resolves no substantive question of infringement, validity, or claim scope — US10313630B2 remains unadjudicated on the merits, and no estoppel attaches to either party from this proceeding.
Dismissed without prejudice: what the Rule 41 exit means for both parties
Rule 41(a)(1)(A)(i): plaintiff-initiated exit before defendant answers
Under Federal Rule of Civil Procedure 41(a)(1)(A)(i), a plaintiff may voluntarily dismiss its claims without a court order if the defendant has not yet served an answer or a motion for summary judgment. The dismissal is without prejudice by default, meaning no judgment on the merits is entered and the plaintiff retains the right to refile the same claims. The court's role here was confirmatory, not adjudicative.
Plaintiff-initiated dismissalWithout prejudice: Zeppelin can refile — but conditions may differ
A dismissal without prejudice does not extinguish the underlying patent claims. Zeppelin Corporation retains the right to assert US10313630B2 against Verizon or other defendants in a future action. However, any refiling would face fresh venue analysis, potentially updated claim charts, and any intervening developments affecting the patent's validity or enforceability. The specific reasons for the early withdrawal are not disclosed in the available record.
Refiling option preservedVerizon exits without a merits ruling — no preclusion established
Verizon Communications and Cellco Partnership d/b/a Verizon Wireless secured a clean exit from this litigation without any finding of infringement or non-infringement. Because the dismissal is without prejudice and no answer appears to have been filed before dismissal, Verizon cannot claim issue preclusion from this proceeding. Each party bears its own costs, so Verizon received no cost recovery.
No merits adjudicationUS10313630B2 remains in play for future enforcement or licensing
The absence of any merits ruling or invalidity finding leaves US10313630B2 fully enforceable. Mobile device and telecommunications companies operating in the fluorescent substances space should note that this patent has been asserted in active litigation and that the dispute has not been resolved on the merits. The patent holder retains full enforcement optionality against Verizon or other market participants.
Patent enforcement risk remainsFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Zeppelin Corporation | Company | /Search in Eureka ↗ |
| Defendant | Verizon Communications, Inc. | Company | /Search in Eureka ↗ |
| Co-Defendant | Cellco Partnership, (dba Verizon Wireless) | Individual | Search in Eureka ↗ |
| Plaintiff counsel | Kirk Anderson | Attorney | Counsel for Zeppelin CorporationSearch in Eureka ↗ |
| Plaintiff law firm | Budo Law PC (CO) | Law Firm | Representing Zeppelin CorporationSearch in Eureka ↗ |
| Defendant counsel | Deron R. Dacus | Attorney | Counsel for Verizon Communications, Inc.Search in Eureka ↗ |
| Defendant law firm | The Dacus Firm PC | Law Firm | Representing Verizon Communications, Inc.Search in Eureka ↗ |
| Presiding judge | Judge Amos L. Mazzant | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
R&D signals in mobile device fluorescent technology IP
Forward-looking patent and R&D intelligence derived from the Zeppelin v. Verizon dispute over fluorescent substance mobile phone technology.
Zeppelin Corporation's patent activity around mobile device materials
Zeppelin Corporation's assertion of US10313630B2 (App. No. US15/475123) suggests an IP portfolio with a focus on material science integration in mobile devices. Monitoring Zeppelin's related prosecution activity — including continuations, divisionals, and continuation-in-part applications — can reveal whether the enforced claim scope is likely to expand or narrow in future licensing or litigation rounds.
Portfolio watchFluorescent substance integration in mobile handsets: filing trends
The fluorescent and luminescent material integration space within mobile devices has attracted filings from display OEMs, material science firms, and handset manufacturers. Understanding filing trends in this domain — including which assignees are most active and which claim types are being prosecuted — helps R&D and IP teams identify potential conflict zones and freedom-to-operate gaps before product launch.
Filing trend analysisVerizon's IP position in mobile device material technology
Verizon Communications and Cellco Partnership (Verizon Wireless) maintain broad patent portfolios spanning network, device, and component technology. Assessing Verizon's own filings in mobile device materials and display technology — including any cross-licensing agreements or defensive publications — provides context for evaluating how a future assertion by Zeppelin or a similar plaintiff might be countered.
Carrier IP landscapeAdjacent R&D white space near fluorescent mobile device technology
The specific claim scope of US10313630B2 around fluorescent substances in mobile phones may leave adjacent design spaces — such as phosphorescent coatings, quantum dot display integration, or UV-reactive enclosures — with lower patent density. Identifying these white-space areas can guide R&D investment and IP filing strategies that avoid the asserted claim scope while capturing novel functionality.
Design-around opportunitiesSimilar patent infringement cases in mobile device technology — E.D. Texas
Browse comparable patent infringement actions asserting mobile device patents in the Eastern District of Texas, including early voluntary dismissals and fluorescent/display technology disputes.
What this case signals for the mobile device and telecom IP landscape
A fast voluntary dismissal in E.D. Texas often signals parallel negotiation or a strategic repositioning by the asserting party.
Early E.D. Texas exits often precede refiling or licensing discussions
A 103-day lifespan ending in a plaintiff-initiated Rule 41 dismissal — before any answer or substantive motion — is consistent with parties reaching a preliminary accommodation or the plaintiff reassessing litigation strategy. The without-prejudice posture confirms that Zeppelin has preserved all enforcement options against Verizon and others under US10313630B2.
No cost award cuts both ways for future venue and settlement leverage
The 'each party bears its own costs' order means neither side secured a financial foothold from this proceeding. Verizon received no fee-shifting deterrence to deploy in future proceedings, and Zeppelin incurred no adverse cost order that would signal litigation weakness. Both parties enter any future engagement on neutral financial footing from this case.
Zeppelin v Verizon — key questions answered
The case was dismissed without prejudice. On 29 August 2023, Zeppelin Corporation filed a Notice of Dismissal Without Prejudice and the court ordered all claims against Verizon Communications, Inc. and Cellco Partnership d/b/a Verizon Wireless dismissed pursuant to Rule 41(a)(1)(A)(i). Each party was ordered to bear its own costs, expenses, and attorney's fees.
Zeppelin Corporation asserted US10313630B2 (Application No. US15/475123), a patent directed to technology relating to mobile phones with fluorescent substances. The case was filed in the Eastern District of Texas on 18 May 2023.
A dismissal without prejudice means no judgment on the merits was entered. Verizon Communications and Cellco Partnership d/b/a Verizon Wireless secured a clean exit from this particular proceeding, but no finding of non-infringement or invalidity was made. Zeppelin retains the right to refile claims under US10313630B2 against Verizon or other defendants in a future action.
The case lasted 103 days, from filing on 18 May 2023 to closure on 29 August 2023. This short lifespan is consistent with the dismissal occurring before any answer or substantive motion was filed, as required for a Rule 41(a)(1)(A)(i) voluntary dismissal without a court order.
Zeppelin Corporation was represented by Kirk Anderson of Budo Law PC (CO). Verizon Communications, Inc. and Cellco Partnership d/b/a Verizon Wireless were represented by Deron R. Dacus of The Dacus Firm PC. The case was presided over by Judge Amos L. Mazzant in the Eastern District of Texas.
This page is compiled from public court dockets and third-party patent and litigation data via PatSnap Eureka, and is provided for general informational purposes only. The information shown — including party names, patent and application numbers, dates, case status, outcomes, and any analysis — may be incomplete, may not reflect the most recent filings or legal status, and may contain errors or omissions. Verify all details against official court records (for example, PACER) and the relevant patent office before relying on them.
Nothing on this page constitutes legal advice or a legal opinion on the validity, infringement, enforceability, or scope of any patent or case, and no attorney‑client relationship is created by its use. Any description of an outcome (such as a dismissal, settlement, or consent judgment) is a general summary, not a legal determination. All patents, trademarks, and company or law‑firm names are the property of their respective owners. PatSnap makes no warranty as to the accuracy or completeness of this content and disclaims, to the fullest extent permitted by law, all liability for reliance on it. For advice on a specific matter, consult qualified legal counsel.
PatSnap Eureka searches patents and litigation data to answer instantly.