Calypso IP v. LG Electronics: Dismissed Without Prejudice After 172 Days
Calypso IP, LLC asserted US6680923B1 — a patent covering mobile device technology — against LG Electronics in the Eastern District of Texas. After 172 days and before LG filed any answer, Calypso voluntarily dismissed the case without prejudice under Rule 41(a)(1)(A)(i), leaving the door open for re-filing.
Pre-Answer Dismissal Leaves LG Electronics’ Exposure Unresolved
On October 18, 2024, Calypso IP, LLC — a patent assertion entity — filed suit against LG Electronics, Inc. in the Eastern District of Texas (Case No. 2:24-cv-00839), asserting infringement of US6680923B1, a patent directed to mobile devices and their associated components. The Eastern District of Texas was chosen as the venue, consistent with its established appeal to patent plaintiffs. Calypso was represented by Ahmad, Zavitsanos & Mensing PC and Miller Fair Henry PLLC, while LG retained Faegre Drinker Biddle & Reath LLP and Gillam & Smith, LLP.
On April 8, 2025 — 172 days after filing — Calypso filed a Notice of Dismissal Without Prejudice pursuant to Rule 41(a)(1)(A)(i), which permits a plaintiff to dismiss unilaterally before the defendant has answered or moved for summary judgment. The court accepted and acknowledged the notice, formally closing the case. Crucially, the dismissal was entered without prejudice, meaning Calypso retains the legal right to reassert the same patent claims against LG Electronics or other defendants in a future action.
The timing of the dismissal — before LG filed any responsive pleading — is consistent with pre-answer settlement negotiations, licensing discussions, or a strategic pause rather than a merits-based resolution. The public record is silent on whether any licensing agreement or payment accompanied the withdrawal. From LG’s perspective, no invalidity ruling or non-infringement finding was secured, meaning the underlying patent risk has not been formally extinguished.
Filing to Dismissed without Prejudice in 172 days
172 days from filing to voluntary dismissal — below the median lifecycle for E.D. Texas patent cases resolved without answer
Dismissed without prejudice: what this means for each party
Rule 41(a)(1)(A)(i): plaintiff’s unilateral right to exit
Rule 41(a)(1)(A)(i) allows a plaintiff to dismiss a case as of right — without court approval — so long as the defendant has not yet served an answer or a motion for summary judgment. Here, LG had not answered, so Calypso exercised this right unilaterally. The court’s role was purely administrative: accept, acknowledge, and direct the clerk to close. No merits were adjudicated.
No merits rulingWithout prejudice: the refiling option remains open
A dismissal without prejudice does not bar the plaintiff from refiling the same claims. Calypso explicitly represented in its Notice that the dismissal was without prejudice, and the court so ordered. This contrasts sharply with a dismissal with prejudice, which would extinguish the claims permanently. The public record does not disclose whether any confidential settlement or licensing arrangement accompanied the withdrawal — that distinction matters significantly for assessing true case resolution.
Refiling permittedLG obtains no invalidity or non-infringement finding
LG Electronics secured no court ruling on the merits — no finding of invalidity, no non-infringement determination, and no fee award. While the immediate litigation threat has lifted, the patent US6680923B1 remains in force and unchallenged on the public record. LG, or any other company in the mobile device space, faces the same patent risk should Calypso elect to refile or assert the patent against other defendants.
Patent risk unresolvedMobile device sector: patent stays live with no public resolution
Because the dismissal was without prejudice and no licensing terms were disclosed, US6680923B1 remains a live enforcement risk for the broader mobile device ecosystem. Other OEMs operating in this space should treat the patent as still active and conduct FTO analysis accordingly. Calypso’s pattern of asserting and withdrawing before answer is consistent with a licensing-first enforcement strategy — competitors should monitor for future assertions.
Monitor for re-assertionFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Calypso IP, LLC | Company | Patent assertion entity — holder of US6680923B1 covering mobile device technologySearch in Eureka ↗ |
| Defendant | LG Electronics, Inc. | Company | LG Electronics, Inc. — global consumer electronics and mobile device manufacturerSearch in Eureka ↗ |
| Plaintiff counsel | Andrea Leigh Fair | Attorney | Counsel for Calypso IP, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Jason Scott Mcmanis | Attorney | Counsel for Calypso IP, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Louis Liao | Attorney | Counsel for Calypso IP, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Michael Alexander Killingsworth | Attorney | Counsel for Calypso IP, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Weining Bai | Attorney | Counsel for Calypso IP, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Ahmad, Zavitsanos & Mensing PC | Law Firm | Representing Calypso IP, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Miller Fair Henry PLLC | Law Firm | Representing Calypso IP, LLCSearch in Eureka ↗ |
| Defendant counsel | Lora A. Brzezynski | Attorney | Counsel for LG Electronics, Inc.Search in Eureka ↗ |
| Defendant counsel | Melissa Richards Smith | Attorney | Counsel for LG Electronics, Inc.Search in Eureka ↗ |
| Defendant counsel | Thatcher Albert Rahmeier | Attorney | Counsel for LG Electronics, Inc.Search in Eureka ↗ |
| Defendant law firm | Drinker Biddle & Reath, LLP (Wilmington) | Law Firm | Representing LG Electronics, Inc.Search in Eureka ↗ |
| Defendant law firm | Faegre Drinker Biddle & Reath LLP | Law Firm | Representing LG Electronics, Inc.Search in Eureka ↗ |
| Defendant law firm | Gillam & Smith, LLP | Law Firm | Representing LG Electronics, Inc.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order is purely procedural: it accepts and acknowledges Calypso’s unilateral Rule 41(a)(1)(A)(i) notice and directs closure. The phrasing ‘DISMISSED WITHOUT PREJUDICE’ is dispositive — no claim was adjudicated, no patent was held valid or invalid, and no infringement finding was made. For LG, the absence of a merits ruling means no res judicata protection. For Calypso, the order preserves all enforcement options against LG and any other party in the mobile device sector.
US6680923B1 — Mobile Device Wireless Communication Technology
US6680923B1 (application number US09/577812) is a granted U.S. utility patent covering technology related to mobile devices and their associated components. The patent’s application number suggests it was filed in the early 2000s, a formative period for wireless handset and mobile communication architecture. Patents from this era often cover foundational wireless protocol handling, device interface management, or power and signal processing features that remain embedded in modern mobile hardware and software stacks.
For the mobile device and consumer electronics sector, US6680923B1 represents a potentially broad enforcement asset. Calypso IP’s decision to assert it against LG Electronics — a major global OEM — suggests confidence in the patent’s claim scope relative to commercially deployed mobile products. Companies shipping smartphones, tablets, or mobile components should assess whether their architectures intersect with this patent’s claims, particularly given the absence of any invalidation ruling and Calypso’s demonstrated willingness to litigate in plaintiff-friendly venues.
Should you run an FTO against US6680923B1?
Any company designing, manufacturing, or distributing mobile devices or their associated components — including chipset vendors, handset OEMs, and component suppliers — should consider an FTO assessment against US6680923B1. The patent remains in force, has not been invalidated, and has already been asserted against a tier-one OEM. Firms preparing for product launches, M&A transactions, or investor due diligence in the mobile hardware space face real exposure if this patent’s claims are not mapped against their product architecture.
PatSnap Eureka’s FTO Search Agent enables IP and R&D teams to rapidly map US6680923B1’s claim language against product specifications, identify design-around opportunities, and surface any post-grant proceedings such as IPR petitions that could affect enforceability. Eureka also monitors for new assertions by Calypso IP across its broader portfolio, giving in-house counsel early warning of emerging enforcement campaigns before litigation is filed.
Run a freedom-to-operate analysis on US6680923B1 to assess your product’s exposure
Run FTO in Eureka →Similar Mobile Device Patent Cases in E.D. Texas
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What this case signals for mobile device IP enforcement in E.D. Texas
A pre-answer voluntary dismissal in E.D. Texas rarely signals the end of a patent assertion campaign — it often marks a pivot.
Pre-answer dismissal is a hallmark of licensing-driven PAE strategy
When a plaintiff dismisses before the defendant answers, it typically signals that litigation pressure has achieved its strategic purpose — whether a licensing deal, ongoing negotiations, or a decision to re-target. For mobile device OEMs, this pattern from Calypso IP warrants close monitoring: the same patent could be asserted again with no legal barrier.
US6680923B1 has not been invalidated — FTO analysis remains essential
No court has ruled on the validity or scope of US6680923B1. Companies developing or selling mobile devices and associated components should treat this patent as a live risk. An FTO search against this patent — including prosecution history and any IPR filings — is a prudent step before product launches or investor due diligence in this technology space.
Calypso v LG — key questions answered
Calypso IP, LLC filed a patent infringement suit against LG Electronics, Inc. in the Eastern District of Texas on October 18, 2024, asserting US6680923B1 covering mobile device technology. On April 8, 2025, Calypso voluntarily dismissed the case without prejudice under Rule 41(a)(1)(A)(i) before LG had filed any answer. The court accepted the notice and closed the case with no merits ruling.
A dismissal without prejudice means Calypso IP retains the right to refile the same patent infringement claims against LG Electronics or other defendants at a future date. No court ruled on whether US6680923B1 is valid or whether LG infringed it. The dismissal does not provide LG with any legal protection — such as res judicata — against a subsequent action on the same patent.
The public record does not disclose the reason. Under Rule 41(a)(1)(A)(i), a plaintiff may dismiss without court approval before the defendant has answered or moved for summary judgment — no explanation is required. The timing is consistent with private licensing negotiations, a settlement, or a strategic decision to redirect enforcement efforts, but no such terms are confirmed in the public docket.
US6680923B1 is a granted U.S. patent directed to mobile devices and their associated components, filed under application number US09/577812. Its assertion against LG Electronics — a major global OEM — suggests the patent holder believes its claims read on commercially deployed mobile products. The patent has not been invalidated, making it a live risk for OEMs, chipset vendors, and component suppliers in the mobile device sector.
Yes. Because the dismissal was without prejudice, Calypso IP faces no legal bar to refiling against LG Electronics or asserting US6680923B1 against other mobile device manufacturers. The standard statute of limitations for patent infringement applies. Companies in the mobile hardware and components space should monitor Calypso IP’s litigation activity and conduct FTO analysis against this patent proactively.
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