WirelessWerx IP LLC v. Nissan Motor Co. — Dismissed With Prejudice in 136 Days
WirelessWerx IP LLC filed a patent infringement action against Nissan Motor Co. in the Northern District of Texas, asserting US7323982B2 covering wireless control systems. The plaintiff voluntarily dismissed all claims with prejudice before Nissan answered, with each party bearing its own costs — closing the case in just 136 days.
Early voluntary exit: WirelessWerx ends Nissan patent suit with prejudice
On 14 February 2025, WirelessWerx IP LLC — a patent assertion entity — filed suit against Nissan Motor Co., Ltd. in the Northern District of Texas (Judge David C. Godbey) alleging infringement of US7323982B2, a patent directed at systems and methods for wirelessly controlling systems. The asserted conduct centred on Nissan’s alleged instructing of customers and others on the use of such wireless control systems through its website and product instruction manuals.
The case closed on 30 June 2025 via a plaintiff-filed notice of voluntary dismissal under Federal Rule of Civil Procedure 41(a)(1)(A)(i), which permits dismissal without a court order where the defendant has not yet answered or moved for summary judgment. Critically, WirelessWerx elected to take the dismissal with prejudice as to the asserted patent, permanently foreclosing any future assertion of US7323982B2 against Nissan. Each party agreed to bear its own litigation costs.
A with-prejudice dismissal at this early stage — before Nissan had even filed an answer — is commercially significant and somewhat unusual. It typically suggests that the plaintiff concluded, after filing, that the case lacked sufficient merit or licensing leverage to pursue, or that a confidential pre-answer resolution was reached. The public record does not disclose whether any commercial agreement accompanied the dismissal, and the equal cost-bearing arrangement neither confirms nor excludes a negotiated settlement.
Filing to Voluntary dismissal in 136 days
136 days — resolved before defendant answered or filed any dispositive motion
Dismissed with prejudice: what the voluntary exit means for both parties
Rule 41(a)(1)(A)(i): plaintiff’s right to dismiss before answer
Federal Rule 41(a)(1)(A)(i) allows a plaintiff to dismiss an action without a court order if the defendant has not yet served an answer or a motion for summary judgment. Here, WirelessWerx exercised that right but chose to make the dismissal with prejudice — a voluntary concession that goes beyond what the rule requires and permanently bars re-filing the same claims against Nissan on this patent.
Voluntary, with prejudiceWirelessWerx permanently forfeits claims against Nissan on US7323982B2
By stipulating that the dismissal is with prejudice as to the asserted patent, WirelessWerx surrendered its right to ever reassert US7323982B2 against Nissan in any future action. This is a materially stronger concession than a standard voluntary dismissal. The patent remains nominally in force and may still be asserted against other defendants, but Nissan is effectively permanently immunised from this specific patent claim.
Patent barred against NissanNissan secures permanent protection from this patent without litigating
Nissan Motor Co. achieved a with-prejudice dismissal without filing an answer, incurring motion practice costs, or enduring claim construction proceedings. The outcome provides Nissan with a res judicata-type shield against any future assertion of US7323982B2 by WirelessWerx or potentially its successors. Each party bears its own fees, suggesting Nissan did not obtain a fee award despite the early exit — consistent with the pre-answer procedural posture.
Nissan effectively immunisedEarly with-prejudice exit raises questions about litigation strategy
When a PAE voluntarily dismisses with prejudice before the defendant even answers, it typically signals one of two things: the plaintiff identified a fatal weakness in its claims after filing, or a confidential commercial resolution was reached. Neither scenario is confirmed by the public record. For other automotive OEMs and suppliers that instruct customers on wireless system use, the outcome provides limited precedent but suggests WirelessWerx’s assertion theory faced real constraints.
Strategy signal for automotive sectorFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | WirelessWerx IP LLC | Company | Patent assertion entity — holder of US7323982B2 (wireless control systems)Search in Eureka ↗ |
| Defendant | Nissan Motor Co., Ltd. | Company | Nissan Motor Co., Ltd. — global automotive manufacturer targeted for wireless system useSearch in Eureka ↗ |
| Plaintiff counsel | Jeffrey E. Kubiak | Attorney | Counsel for WirelessWerx IP LLCSearch in Eureka ↗ |
| Plaintiff counsel | Kirby Blair Drake | Attorney | Counsel for WirelessWerx IP LLCSearch in Eureka ↗ |
| Plaintiff counsel | William P. Ramey , III | Attorney | Counsel for WirelessWerx IP LLCSearch in Eureka ↗ |
| Plaintiff law firm | Kirby Drake Law PLLC | Law Firm | Representing WirelessWerx IP LLCSearch in Eureka ↗ |
| Plaintiff law firm | Ramey LLP | Law Firm | Representing WirelessWerx IP LLCSearch in Eureka ↗ |
| Defendant counsel | Jason W. Cook | Attorney | Counsel for Nissan Motor Co., Ltd.Search in Eureka ↗ |
| Defendant law firm | McGuireWoods LLP | Law Firm | Representing Nissan Motor Co., Ltd.Search in Eureka ↗ |
| Presiding judge | Judge David C. Godbey | Judge | Texas Northern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal notice expressly invokes Rule 41(a)(1)(A)(i) and specifies that dismissal is with prejudice as to the asserted patent — language that goes beyond a standard unilateral voluntary dismissal. This phrasing permanently forecloses WirelessWerx from reasserting US7323982B2 against Nissan in any future proceeding. The equal cost-bearing provision is consistent with a negotiated exit but does not confirm one. No merits determination was made, meaning no claim construction, invalidity ruling, or infringement finding appears on the public record.
US7323982B2 — Wireless Systems and Methods for Remotely Controlling Systems
US7323982B2, filed under application number US11/105932, covers systems and methods for wirelessly controlling systems — a broad technical domain that encompasses remote operation via wireless network communication. The patent’s application date and grant history place it in an era when wireless connectivity in consumer and vehicular applications was rapidly maturing. WirelessWerx asserted the patent specifically against conduct involving customer instruction on use of wireless control systems through digital and print channels.
For the automotive sector, this patent’s breadth is commercially significant. Vehicles increasingly integrate wireless control interfaces — from telematics and remote start to over-the-air update systems — and OEM documentation routinely instructs users on such features. The patent’s assertion against Nissan’s instructional materials suggests a broad infringement theory that could extend to any automotive manufacturer or supplier publishing similar user guidance. Whether the patent would survive an invalidity challenge remains untested by this case.
Should your team run an FTO analysis against US7323982B2?
Any automotive OEM, Tier-1 supplier, or connected-vehicle software provider whose products include wireless control functionality — and whose documentation or website instructs users on that functionality — should treat US7323982B2 as an active enforcement risk. WirelessWerx’s dismissal against Nissan does not limit the patent’s enforceability against other parties. The breadth of the asserted infringement theory makes this patent relevant to a wide range of connected vehicle and telematics product lines.
PatSnap Eureka’s FTO Search Agent allows R&D and IP teams to map the claim scope of US7323982B2 against your specific product architecture and user-facing documentation. Eureka can identify prior art that could support an IPR petition, surface related WirelessWerx or Ramey LLP filings, and flag claim elements most likely to be asserted — enabling faster, evidence-based FTO decisions before a suit is filed.
Run a freedom-to-operate analysis on US7323982B2 to assess your product’s exposure
Run FTO in Eureka →Similar wireless control patent cases in N.D. Texas district courts
Cases involving wireless control system patents filed by PAEs in the Northern District of Texas, including Ramey LLP-filed suits against automotive and technology defendants.
What this case signals for the automotive wireless patent IP landscape
A with-prejudice dismissal before answer is rare in PAE litigation — it warrants close reading by automotive IP and in-house teams.
With-prejudice dismissals are permanent — Nissan cannot be re-sued on this patent
The with-prejudice designation in a Rule 41 dismissal carries the same legal finality as a merits ruling for the specific patent and defendant. Automotive OEMs facing similar early-stage PAE suits should examine whether securing a with-prejudice exit — even without a court order — is achievable before incurring heavy defence costs.
PAE suits resolved pre-answer often signal claim fragility or quiet settlement
WirelessWerx’s decision to dismiss before Nissan answered is consistent with a plaintiff reassessing claim strength after initial due diligence, or reaching a confidential licensing arrangement. In-house teams monitoring PAE activity around wireless vehicular systems should track whether WirelessWerx files similar suits against other automotive defendants on the same or related patents.
WirelessWerx v Nissan — key questions answered
The case involves WirelessWerx IP LLC asserting US7323982B2 — a patent covering wireless systems and methods for remotely controlling systems — against Nissan Motor Co. in the Northern District of Texas. The complaint targeted Nissan’s alleged instruction of customers on wireless control systems via its website and product manuals. The case was filed 14 February 2025 and dismissed 30 June 2025.
WirelessWerx voluntarily dismissed under Rule 41(a)(1)(A)(i) before Nissan filed an answer, making a court order unnecessary. The plaintiff chose to designate the dismissal as with prejudice as to US7323982B2, permanently barring reassertion against Nissan. The public record does not disclose why — possibilities include identified claim weaknesses, a confidential resolution, or strategic portfolio management.
No. The with-prejudice dismissal protects only Nissan Motor Co. from future assertion of US7323982B2 by WirelessWerx. The patent remains enforceable against all other parties. Automotive OEMs, Tier-1 suppliers, and connected-vehicle companies whose documentation instructs users on wireless control functionality remain potentially within the patent’s enforcement scope.
US7323982B2, filed under application US11/105932, covers systems and methods for wirelessly controlling systems via network communication. In this case, WirelessWerx asserted the patent against Nissan’s instructional activities — specifically, customer-facing materials describing use of wireless control systems. The patent’s technical scope potentially extends to a wide range of connected vehicle and telematics applications.
WirelessWerx IP LLC was represented by William P. Ramey III and Kirby Blair Drake of Ramey LLP and Kirby Drake Law PLLC, respectively, along with Jeffrey E. Kubiak. Nissan Motor Co. was represented by Jason W. Cook of McGuireWoods LLP. Ramey LLP is a high-volume patent litigation firm known for PAE representation in Texas courts.
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