Portus Singapore v. Control4 Corporation: Voluntary Dismissal After 1 Day
Portus Singapore asserted two patents covering smart-home automation and remote access-control systems against Control4's broad product ecosystem, including EA-series controllers, cloud services, and mobile apps. The case closed just one day after filing, with Portus voluntarily dismissing all claims without prejudice under Rule 41(a)(1)(A)(i).
A one-day patent suit in Utah: smart-home IP dropped without prejudice
On 4 June 2026, Portus Singapore PTE Ltd. and Portus PTY Ltd. filed suit against Control4 Corporation in the Utah District Court before Judge Tena Campbell, asserting infringement of US8914526B1 and US9961097B2. The accused products span Control4's entire smart-home ecosystem: EA-series controllers, Control4 OS and Navigator interfaces, cloud services, mobile applications, smart lighting, Neeo remotes, T3 Series touch screens, authentication systems, and numerous related services including 4Sight subscriptions and Web Navigator.
The recorded Basis of Termination is Voluntary dismissal. The docket order states that Portus invoked Federal Rule 41(a)(1)(A)(i) — available where the defendant has not yet answered or moved for summary judgment — to file a notice of voluntary dismissal of all claims without prejudice as to the asserted patents. Each party was directed to bear its own costs, expenses, and attorneys' fees.
The dismissal came just one day after filing, which suggests the action was withdrawn before substantive proceedings commenced. Because the dismissal is without prejudice, the asserted patents remain available for future enforcement. The specific circumstances driving the immediate withdrawal are not disclosed in the available public record.
See Complete Case & Patent Analysis →Filing to Voluntary dismissal in 1 days
Case resolved in 1 day — among the shortest-lived patent suits on record
US8914526B1 & US9961097B2 — remote access-control and smart-home automation systems
Any R&D team or product organisation shipping smart-home controllers, remote-access servers, cloud-connected home automation services, or authentication systems in this space should assess freedom to operate against US8914526B1 and US9961097B2. The without-prejudice dismissal means enforcement risk has not been resolved, and the asserted claim scope — as evidenced by the 20-plus accused Control4 products — is broad.
Official order — verbatim text
The voluntary dismissal notice invokes Rule 41(a)(1)(A)(i) and expressly states the withdrawal is without prejudice as to the asserted patents, with each party bearing its own costs. No merits determination was made by the court; the order reflects a unilateral plaintiff election made before any responsive pleading by Control4.
Voluntarily dismissed: what the Rule 41 withdrawal means for both parties
Rule 41(a)(1)(A)(i): dismissal as of right before answer
Federal Rule 41(a)(1)(A)(i) allows a plaintiff to dismiss an action without a court order at any time before the defendant serves an answer or a motion for summary judgment. Because Control4 had not yet responded, Portus exercised this right unilaterally. No judicial merits determination was made. The dismissal is recorded as without prejudice, meaning the claims are not extinguished.
No merits rulingPatents survive: Portus retains the right to refile
A dismissal without prejudice does not adjudicate the validity or infringement of the asserted patents. US8914526B1 and US9961097B2 remain enforceable, and Portus retains the ability to assert them again against Control4 or other parties. The public record is silent on any conditions or arrangements that may have accompanied the withdrawal.
Patents remain liveControl4 avoids judgment — but exposure may not be resolved
Control4 Corporation avoided any adverse finding at this stage and incurs no court-ordered costs under the dismissal order. However, because the dismissal is without prejudice, Control4's broad product line — including its cloud services, controllers, and touch interfaces — remains potentially exposed to future assertion of the same patents. No findings on infringement or invalidity were made.
No cost order against defendantOpen patent risk for the smart-home automation sector
A without-prejudice dismissal leaves the IP landscape unchanged. Competitors and OEMs operating in the smart-home automation, remote access-control, and cloud-connected home-services space should note that the asserted patents — covering remote monitoring, authentication, and access-control architectures — remain available for enforcement. Freedom-to-operate assessments against US8914526B1 and US9961097B2 remain commercially relevant.
FTO review warrantedFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Portus Singapore | Individual | /Search in Eureka ↗ |
| Defendant | Control4 Corporation | Company | /Search in Eureka ↗ |
| Plaintiff counsel | William P. Ramey , III | Attorney | Counsel for Portus SingaporeSearch in Eureka ↗ |
| Plaintiff law firm | Ramey, LLP | Law Firm | Representing Portus SingaporeSearch in Eureka ↗ |
| Presiding judge | Judge Tena Campbell | Judge | Utah District CourtSearch in Eureka ↗ |
R&D signals in the smart-home and remote access-control IP space
Forward-looking patent and innovation intelligence derived from Portus's assertion of remote access-control and smart-home system patents against Control4's ecosystem.
Portus's remote access-control patent portfolio activity
Portus's assertion of two distinct patents covering remote monitoring and authentication architectures suggests a focused IP portfolio in the connected-home access-control domain. R&D teams should map Portus's full patent family to understand the scope of coverage and identify continuation or divisional filings that may expand claim reach.
Portfolio monitoringFiling trends in smart-home remote access and authentication
Cloud-connected home automation platforms integrating remote access, authentication, and multi-device control represent one of the most active patenting domains in consumer electronics. Understanding filing velocity and claim evolution in this space helps product teams anticipate IP friction points in controller architectures and cloud service layers.
Active filing domainControl4's patent position in home automation and access-control
Control4 Corporation operates across hardware, OS, cloud, and mobile layers of the smart-home stack. Mapping Control4's own patent portfolio in remote monitoring, access-control, and home automation reveals both its defensive IP assets and potential white-space where Portus-type assertion is more likely to succeed or be contested.
Defensive IP mapAdjacent R&D opportunities near asserted remote-access patents
The claim perimeter of US8914526B1 and US9961097B2 around remote monitoring, device authentication, and access-control architectures may leave adjacent white space in areas such as edge-compute authentication, zero-trust home networking, and AI-driven device orchestration. These zones represent lower-friction R&D pathways for connected-home platform developers.
Innovation white spaceSimilar smart-home automation patent cases in US district courts
Explore related patent infringement actions asserting remote access-control and smart-home system patents in US district courts, including cases involving Portus and Ramey LLP.
What this case signals for the smart-home automation IP landscape
A one-day lifecycle and without-prejudice exit keeps Portus's patent portfolio fully armed — and raises questions for any Control4 ecosystem partner.
Without-prejudice dismissals preserve full enforcement optionality
Portus's Rule 41(a)(1)(A)(i) withdrawal does not extinguish either patent. Any company shipping smart-home controllers, remote-access servers, or cloud-connected home automation services should treat US8914526B1 and US9961097B2 as active enforcement risks and conduct FTO analysis accordingly.
One-day cases can signal pre-litigation negotiation or procedural recalibration
A complaint filed and withdrawn within 24 hours is consistent with a range of strategic scenarios — procedural recalibration, venue reassessment, or early engagement. However, the specific driver is not disclosed in the available public record. IP teams monitoring Portus should track subsequent filings.
Singapore v Control4 — key questions answered
Portus Singapore PTE Ltd. and Portus PTY Ltd. asserted two patents: US8914526B1 (application US09/868417) and US9961097B2 (application US14/536784), both covering remote access-control and smart-home automation architectures. The accused products included Control4's EA-series controllers, cloud services, mobile applications, touch screens, Neeo remotes, and authentication systems, among others.
The case was dismissed one day after filing pursuant to Federal Rule 41(a)(1)(A)(i), which permits a plaintiff to voluntarily dismiss without a court order before the defendant has answered or moved for summary judgment. The specific reason Portus withdrew the action so swiftly is not disclosed in the available public record.
The dismissal is expressly without prejudice as to the asserted patents. This means US8914526B1 and US9961097B2 were not adjudicated on the merits, and Portus retains the right to assert them again in future proceedings against Control4 or other parties.
The voluntary dismissal notice states that each party shall bear its own costs, expenses, and attorneys' fees. No cost award was made by the court, and no fee-shifting determination under 35 U.S.C. § 285 or otherwise is recorded in the available public record.
Because the dismissal is without prejudice, no finding of non-infringement or invalidity was made. Control4's product ecosystem — including its cloud services, controllers, mobile apps, and authentication systems — remains potentially subject to future assertion of US8914526B1 and US9961097B2. Companies in the smart-home and remote access-control sector should treat these patents as active enforcement risks.
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