Encryptawave v. Hitron Technologies: Infringement Suit Ends in 84 Days
Encryptawave Technologies LLC filed suit in the District of Colorado against Hitron Technologies Americas, alleging infringement of US7233664B2 — a patent covering wireless encrypted communications — across a 12-product lineup including CODA, ARIA, and HIVE device families. The case closed in just 84 days when Encryptawave voluntarily dismissed with prejudice, with each party bearing its own costs.
A rapid pre-answer exit: wireless encryption suit collapses at 84 days
On 24 June 2024, Encryptawave Technologies LLC — a patent-holding entity — filed an infringement action in the U.S. District Court for the District of Colorado against Hitron Technologies Americas, Inc., a provider of broadband and networking hardware. The complaint asserted US7233664B2, a patent covering wireless encrypted communications, against a broad catalogue of Hitron products including the ARIA-2110, ARIA-2210, ARIA-2310, ARIA-3411, CHITA, CODA-5512, CODA-5519, HIVE-2100, HIVE-2200, HUB4, OS2210, and XE1v2.
The case closed on 16 September 2024 — just 84 days after filing — when Encryptawave filed a Notice of Voluntary Dismissal with Prejudice under Federal Rule of Civil Procedure 41(a)(1). Because the dismissal was filed before Hitron served an answer or a motion for summary judgment, no court order was required. Crucially, the dismissal was with prejudice, meaning Encryptawave permanently relinquished its right to bring the same claims against Hitron on this patent. Each party was ordered to bear its own costs, expenses, and attorneys’ fees.
The 84-day duration strongly suggests the parties reached a resolution — or Encryptawave reconsidered the merits of its position — before substantive litigation began. The public record does not disclose whether any licensing agreement, financial settlement, or technical analysis drove the decision. What is clear is that the with-prejudice designation offers Hitron a degree of finality: these specific claims cannot be re-filed. The absence of any fee award is consistent with both sides avoiding the cost exposure of prolonged proceedings.
Filing to Voluntary dismissal in 84 days
84 days — well below the median district court patent case lifespan of 2–3 years
Dismissed with prejudice: what the voluntary exit means for both parties
Rule 41(a)(1): plaintiff exits before defendant answers
Under FRCP 41(a)(1), a plaintiff may dismiss an action without a court order by filing a notice of dismissal before the defendant serves an answer or a motion for summary judgment. Encryptawave invoked this rule at the 84-day mark, indicating Hitron had not yet answered the complaint. The mechanism is plaintiff-controlled and requires no judicial approval, making it one of the fastest procedural exits available in federal civil litigation.
Pre-answer voluntary exitPrejudice designation bars any re-filing of these claims
A dismissal with prejudice operates as a final adjudication on the merits. Encryptawave cannot refile the same infringement claims against Hitron based on US7233664B2 for the accused products. This is a significant distinction from a without-prejudice dismissal, which would preserve the right to refile. By accepting — or electing — the with-prejudice qualifier, Encryptawave permanently foreclosed this avenue of enforcement against Hitron.
Permanent bar on re-filingHitron secures finality without reaching merits
Hitron Technologies Americas achieved a commercially valuable outcome without litigating validity, infringement, or claim construction. The with-prejudice dismissal provides a degree of legal certainty: Encryptawave cannot reassert these specific claims on US7233664B2 against Hitron. However, the patent itself remains in force, and Hitron — along with competitors making similar products — should monitor the patent’s status and any enforcement actions against other parties.
Finality without merits rulingPatent survives; enforcement risk persists for the sector
US7233664B2 was not invalidated or adjudicated. Other manufacturers of wireless networking and broadband gateway products — particularly those deploying similar encrypted communications architectures — remain potentially exposed. The rapid dismissal may suggest Encryptawave is reassessing its enforcement strategy, pursuing licensing, or facing portfolio challenges. Competitors in the DOCSIS gateway and Wi-Fi router segment should treat this case as a monitoring signal, not a sector-wide clearance.
Patent still active — sector risk remainsFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Encryptawave Technologies, LLC | Company | Patent-holding entity — holder of US7233664B2 covering wireless encrypted communicationsSearch in Eureka ↗ |
| Defendant | Hitron Technologies Americas, Inc. | Company | Hitron Technologies Americas, Inc. — broadband and networking hardware manufacturerSearch in Eureka ↗ |
| Plaintiff counsel | David R. Bennett, Esq., | Attorney | Counsel for Encryptawave Technologies, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Direction IP law | Law Firm | Representing Encryptawave Technologies, LLCSearch in Eureka ↗ |
| Defendant counsel | David Jeanchung Tsai | Attorney | Counsel for Hitron Technologies Americas, Inc.Search in Eureka ↗ |
| Defendant law firm | Pillsbury Winthrop Shaw Pittman LLP | Law Firm | Representing Hitron Technologies Americas, Inc.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Colorado District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal notice invokes FRCP 41(a)(1) explicitly, confirming the procedural posture: Hitron had not yet served an answer or summary judgment motion when Encryptawave filed. The with-prejudice qualifier is the operative term — it converts what is otherwise a unilateral plaintiff act into a permanent bar. The ‘each party to bear its own costs’ clause is standard in pre-answer exits but forecloses any fee recovery for Hitron under 35 U.S.C. § 285. No merits determination was reached.
US7233664B2 — wireless encrypted communications technology
US7233664B2 (application number US10/448989) is a U.S. utility patent covering wireless encrypted communications technology. The patent was asserted against a broad range of Hitron’s consumer and enterprise networking products — including DOCSIS cable modems, Wi-Fi gateways, and hybrid broadband devices — suggesting the claims may read on fundamental encrypted wireless data transmission methods rather than narrowly defined product implementations. The application number indicates a filing in the early-to-mid 2000s, a period of intense foundational IP activity in wireless communications.
The strategic significance of US7233664B2 lies in its potential breadth across commodity networking hardware. By targeting 12 distinct Hitron product SKUs spanning multiple device categories, Encryptawave’s complaint signals a claim construction theory that could apply to any device implementing encrypted wireless communications protocols. For competitors in the DOCSIS gateway, Wi-Fi router, and hybrid CPE segments, this patent represents a monitoring priority — particularly given that the patent was not invalidated or narrowed by this proceeding.
Should your product team run an FTO against US7233664B2?
Any company manufacturing or distributing wireless networking hardware — including DOCSIS cable modems, Wi-Fi 5/6 gateways, or hybrid broadband CPE — that incorporates encrypted wireless communications should assess exposure to US7233664B2. The 12-product scope of this complaint demonstrates the patent holder’s willingness to assert broadly across device families. OEMs, ODMs, and operators sourcing similar hardware should not rely on this dismissal as clearance.
PatSnap Eureka’s FTO Search Agent can map the claim language of US7233664B2 against your product specifications, identify prior art that may limit enforceability, and flag any related continuation or family patents held by Encryptawave. Eureka’s litigation monitoring tools also track new filings by patent-holding entities like Encryptawave, giving your IP team advance notice before a complaint lands.
Run a freedom-to-operate analysis on US7233664B2 to assess your product’s exposure
Run FTO in Eureka →Similar wireless encryption patent cases in U.S. District Courts
Cases involving wireless encrypted communications patents asserted against networking hardware makers in U.S. district courts, including early voluntary dismissals and pre-answer exits.
What this case signals for the wireless networking IP landscape
A pre-answer dismissal with prejudice rarely tells the full story — here is what practitioners and product teams should read into it.
Pre-answer dismissals with prejudice often signal off-record resolution
When a plaintiff voluntarily dismisses with prejudice at the 84-day mark — before the defendant even answers — the most commercially logical explanation is a private settlement or licensing agreement. The public record is silent on terms. IP teams monitoring Encryptawave’s enforcement activity should track any subsequent filings against other DOCSIS gateway or Wi-Fi hardware makers as an indicator of portfolio strategy.
US7233664B2 remains live — FTO clearance is incomplete for competitors
This dismissal resolves nothing about the patent’s validity or claim scope. Manufacturers of wireless networking equipment deploying encrypted communications protocols should not treat Hitron’s exit as sector-wide clearance. An FTO analysis against US7233664B2 is advisable for any product line overlapping with the ARIA, CODA, or HIVE device categories named in the complaint.
Encryptawave v Hitron — key questions answered
It means Encryptawave permanently relinquished its right to reassert the same infringement claims against Hitron based on US7233664B2. Filed under FRCP 41(a)(1) before Hitron answered, no court order was required. The with-prejudice designation is final — it bars re-filing these specific claims. Each party bears its own legal costs.
Twelve Hitron products were named: ARIA-2110, ARIA-2210, ARIA-2310, ARIA-3411, CHITA, CODA-5512, CODA-5519, HIVE-2100, HIVE-2200, HUB4, OS2210, and XE1v2. The product range spans DOCSIS cable modems, Wi-Fi gateways, and hybrid broadband CPE devices, suggesting a broad claim interpretation by the plaintiff.
Yes. The dismissal with prejudice only bars Encryptawave from reasserting these claims against Hitron. The patent itself was not invalidated, narrowed, or adjudicated on the merits. US7233664B2 remains potentially enforceable against other parties. Competitors in the wireless networking hardware segment should conduct independent FTO analysis.
The public record does not disclose the reason. The 84-day timeline — before Hitron even answered — is consistent with a private settlement, licensing agreement, or a reassessment of litigation strategy. The with-prejudice election suggests a deliberate, negotiated exit rather than an administrative error or simple withdrawal.
The case was filed in the U.S. District Court for the District of Colorado (Case No. 1:24-cv-01764). Colorado is an increasingly active venue for patent cases, though less prominent than the District of Delaware or W.D. Texas. The case closed before substantive venue or jurisdictional motions were litigated, so venue selection strategy cannot be assessed from the public record.
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