Encryptawave v. BenQ America: WPA2 Wi-Fi Patent Suit Dismissed in 14 Days
Encryptawave Technologies LLC filed suit against BenQ America Corp. in the Eastern District of Texas asserting US7233664B2 — a patent covering Wi-Fi device networks utilizing WPA2 encryption — across a broad product line including projectors, display devices, and wireless adapters. The case was voluntarily dismissed without prejudice just 14 days later, before BenQ filed any answer or dispositive motion.
WPA2 Encryption Suit Against BenQ Ends Before Answer Filed
On 22 November 2024, Encryptawave Technologies LLC — a patent holding entity — filed a patent infringement action against BenQ America Corp. in the U.S. District Court for the Eastern District of Texas before Judge Sean D. Jordan. The complaint asserted US7233664B2, a patent covering Wi-Fi device networks utilizing WPA2 encryption, against a sweeping array of BenQ products including projectors (e.g., TK860i, TH850i, V5000i), wireless display adapters, and interactive flat panels — over 50 named product SKUs in total.
On 6 December 2024 — just 14 days after filing — Encryptawave filed a Notice of Voluntary Dismissal Without Prejudice pursuant to Federal Rule of Civil Procedure 41(a)(1). Because BenQ had not yet served an answer or a motion for summary judgment, no court order was required to effect the dismissal. The notice expressly provides that each party bears its own costs, expenses, and attorneys’ fees, which is a common but not universal feature of early voluntary dismissals.
The 14-day lifespan of this case is striking even by the standards of early-stage patent suits in the Eastern District of Texas. The public record does not disclose whether the parties reached a licensing agreement, covenant not to sue, or other commercial resolution prior to dismissal. Because the dismissal is without prejudice, Encryptawave retains the right to refile the same claims against BenQ or its products at a later date, keeping commercial uncertainty alive for BenQ and similarly situated Wi-Fi device manufacturers.
Filing to Voluntary dismissal in 14 days
14 days — resolved before defendant could answer or file for summary judgment
Voluntarily dismissed: what Rule 41(a)(1) means for both parties
Rule 41(a)(1): dismissal without a court order
Under Federal Rule of Civil Procedure 41(a)(1), a plaintiff may dismiss an action as of right — without any court order — by filing a notice of dismissal before the defendant serves an answer or a motion for summary judgment. Because BenQ had not yet responded, Encryptawave exercised this procedural right unilaterally. The dismissal is self-executing upon filing and requires no judicial approval.
Pre-answer voluntary exitWithout prejudice — but the distinction matters
A dismissal without prejudice leaves the door open: Encryptawave can refile the same patent claims against BenQ or its products at a future date. A dismissal with prejudice would have permanently extinguished the claims. Here, the notice expressly states ‘without prejudice,’ so BenQ obtains no res judicata protection. The public record does not disclose whether a private licensing deal or covenant not to sue was reached alongside this filing.
Claims may be refiledEncryptawave preserves all optionality
By dismissing without prejudice and before BenQ could build a defensive record, Encryptawave exits the litigation with maximum flexibility. It retains the patent, avoids an early invalidity or non-infringement ruling, and can pursue BenQ — or other Wi-Fi device makers — in future proceedings. The fee-bearing clause (each side bears own costs) is consistent with a negotiated early exit, though this cannot be confirmed from the public record alone.
Patent and claims fully intactBenQ escapes judgment — but not future risk
BenQ America avoids any liability finding and incurs minimal litigation cost given the 14-day window. However, without a dismissal with prejudice or an explicit covenant not to sue, BenQ’s 50+ accused product lines remain potentially exposed to reassertion of US7233664B2. Companies in this position typically reassess their WPA2 implementation design-arounds and FTO posture to reduce the risk of a future filing.
Reassertion risk remains liveFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Encryptawave Technologies, LLC | Company | Patent holding entity — holder of US7233664B2 covering WPA2 Wi-Fi device networksSearch in Eureka ↗ |
| Defendant | Benq America, Corp. | Company | BenQ America Corp. — display technology and projector manufacturer and distributorSearch in Eureka ↗ |
| Plaintiff counsel | David R. Bennett | Attorney | Counsel for Encryptawave Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Steven Kalberg | Attorney | Counsel for Encryptawave Technologies, LLCSearch in Eureka ↗ |
| Plaintiff law firm | David R. Bennett | Law Firm | Representing Encryptawave Technologies, LLCSearch in Eureka ↗ |
| Presiding judge | Judge Sean D. Jordan | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The notice of voluntary dismissal invokes Rule 41(a)(1) by its express terms, confirming the dismissal required no court order and was effective upon filing. The ‘without prejudice’ designation is legally significant: it forecloses a res judicata defence for BenQ in any future proceeding on the same claims. The mutual cost-bearing provision, while not legally required under Rule 41, is a common marker of an agreed early exit and may suggest private commercial terms exist outside the public docket.
US7233664B2 — Wi-Fi Device Network Utilizing WPA2 Encryption
US7233664B2 (application number US10/448989) covers a Wi-Fi device network architecture that utilises WPA2 encryption — the Wi-Fi Protected Access 2 standard that became mandatory for Wi-Fi certified devices from 2006. The patent’s technical domain sits at the intersection of wireless networking protocol implementation and device authentication. Given WPA2’s near-universal adoption in commercial Wi-Fi hardware, the patent’s claim scope relative to standard-essential or implementation-level features is commercially significant.
For display technology and projector manufacturers like BenQ, WPA2 support is a baseline product feature rather than a differentiating one — meaning the cost of litigation or licensing is weighed against a commodity functionality. Encryptawave’s decision to assert against a broad SKU list suggests a licensing-first strategy rather than an injunction-focused one. For competitors in the Wi-Fi-enabled display, projector, and IoT peripheral space, the existence and claim scope of US7233664B2 warrants proactive FTO review, particularly given the without-prejudice dismissal here.
Should your Wi-Fi product team run an FTO against US7233664B2?
Any R&D or product team shipping Wi-Fi-enabled devices — projectors, displays, wireless adapters, smart peripherals, or IoT endpoints — that implement WPA2 encryption should assess their exposure to US7233664B2. The BenQ case named over 50 product SKUs across multiple categories, suggesting a broad claim construction theory. A freedom-to-operate analysis should map independent claim elements against your WPA2 implementation architecture before a demand letter arrives.
PatSnap Eureka’s FTO Search Agent can run a claim-by-claim mapping of US7233664B2 against your product’s Wi-Fi stack, flag prosecution history estoppel constraints, surface prior art that may support an IPR petition, and identify design-around opportunities at the protocol implementation level. Given the without-prejudice dismissal in the BenQ case, proactive FTO work now is materially cheaper than reactive litigation defence later.
Run a freedom-to-operate analysis on US7233664B2 to assess your product’s exposure
Run FTO in Eureka →Similar WPA2 and Wi-Fi Encryption Patent Cases in E.D. Texas
Browse related Wi-Fi encryption and WPA2 patent infringement cases filed in the Eastern District of Texas involving similar claim structures and defendant profiles.
What this case signals for the Wi-Fi encryption IP landscape
A 14-day patent suit touching 50+ Wi-Fi and display products rarely ends cleanly — here is what practitioners should monitor.
Pre-answer dismissals in E.D. Texas often signal off-docket resolution
When a patent plaintiff files in the Eastern District of Texas and dismisses voluntarily within two weeks — before the defendant even answers — it typically suggests a licensing discussion occurred in parallel with or immediately after filing. The fee-bearing clause reinforces this reading. IP teams facing similar early dismissals should document any side agreements carefully to clarify scope.
Without-prejudice dismissal keeps BenQ’s entire product catalogue exposed
Over 50 BenQ SKUs were named in the complaint — projectors, wireless adapters, flat panels, and more. None received any invalidity finding or non-infringement ruling. Until a covenant not to sue is confirmed or the patent expires, any BenQ product implementing WPA2 remains a potential target. Counsel should verify patent term and any USPTO reexamination history for US7233664B2.
Encryptawave v Benq — key questions answered
Encryptawave Technologies LLC filed a patent infringement suit against BenQ America Corp. in the Eastern District of Texas on 22 November 2024, asserting US7233664B2 covering WPA2 Wi-Fi device networks against over 50 BenQ product SKUs. The case was voluntarily dismissed without prejudice under Rule 41(a)(1) on 6 December 2024, just 14 days after filing, before BenQ served an answer or any dispositive motion.
A dismissal without prejudice means Encryptawave retains the right to refile the same patent claims against BenQ or its products in the future. BenQ receives no res judicata protection and no finding of non-infringement or invalidity was made. All 50+ accused product SKUs remain potentially exposed until the patent expires or a covenant not to sue is confirmed.
US7233664B2 (application US10/448989) covers a Wi-Fi device network utilising WPA2 encryption. WPA2 has been the mandatory baseline security standard for Wi-Fi certified devices since 2006, meaning its implementation is pervasive across projectors, displays, wireless adapters, and IoT peripherals. The patent’s claim scope — and whether it reads on standard-compliant implementations — determines how broad any enforcement campaign could be.
The public record does not disclose the reason. However, a 14-day voluntary dismissal before any defendant response — accompanied by a mutual cost-bearing clause — is consistent with a licensing discussion or commercial resolution occurring off-docket. The pre-answer timing also allowed Encryptawave to avoid any early invalidity or claim-construction risk that might arise from a 12(b)(6) motion or IPR petition.
The complaint named over 50 BenQ product SKUs including projectors (TK860i, TH850i, TH685i, V5000i, V5010i, V7050i, GP100A, GV50, GV31, GV11, GV30, GV1, GP500), interactive flat panels (RP04, RP03, RM04, RE04, RP8603, RP7603, SL and ST series), wireless display adapters (WDC series), and other display devices — all described as Wi-Fi devices utilizing WPA2 encryption.
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