Cloud Systems Holdco IP v. Carrier Global: Dismissed With Prejudice in 203 Days
Cloud Systems Holdco IP, LLC brought an infringement action against Carrier Global Corporation in the Central District of California over US7975051B2, a patent covering device management, routing, and control systems. The case ended in a voluntary dismissal with prejudice just 203 days after filing — before Carrier even filed an answer.
Pre-Answer Dismissal Extinguishes Carrier Global Infringement Claim
On December 1, 2023, Cloud Systems Holdco IP, LLC — a patent holding entity — filed an infringement action against Carrier Global Corporation in the United States District Court for the Central District of California. The sole patent asserted was US7975051B2 (application no. US11/744084), which covers a system and method for managing, routing, and controlling devices and inter-device connections. Carrier Global, a major provider of HVAC, refrigeration, and building automation technology, was identified as the defendant.
The case closed on June 21, 2024, when Cloud Systems Holdco IP filed a notice of voluntary dismissal under Federal Rule of Civil Procedure 41(a)(1)(A)(i), stipulating that dismissal was with prejudice as to the asserted patent. That prejudice designation is significant: it operates as a final adjudication on the merits, permanently barring Cloud Systems Holdco IP from reasserting US7975051B2 against Carrier Global. The parties agreed that each would bear its own legal costs and fees.
The 203-day duration and pre-answer timing are notable. A Rule 41(a)(1)(A)(i) dismissal is available only before the defendant files an answer or a motion for summary judgment, suggesting the case was resolved through early negotiation or strategic reassessment rather than contested litigation. The public record does not disclose whether a confidential settlement was reached or what specifically prompted the with-prejudice designation, leaving the commercial terms — if any — undisclosed.
Filing to Voluntary dismissal in 203 days
203 days — resolved before defendant answered, faster than typical district court patent lifecycle
Dismissed with prejudice: what the Rule 41 exit means for both parties
Rule 41(a)(1)(A)(i): plaintiff-initiated exit before answer
Federal Rule 41(a)(1)(A)(i) permits a plaintiff to dismiss an action without a court order before the defendant has answered or moved for summary judgment. Here, Cloud Systems Holdco IP exercised that right but elected to make the dismissal with prejudice — a voluntary upgrade beyond the rule’s default, which would otherwise be without prejudice. With-prejudice dismissal carries the same preclusive effect as a final judgment on the merits.
Voluntary — plaintiff-initiatedWith-prejudice bars future assertion of this patent against Carrier
The with-prejudice designation is not a neutral procedural exit. It permanently extinguishes Cloud Systems Holdco IP’s ability to bring any future claim on US7975051B2 against Carrier Global. This is a materially stronger outcome for the defendant than a without-prejudice dismissal, which would leave open the possibility of refiling. The public record does not reveal whether a negotiated agreement — potentially including licensing terms or a payment — drove the with-prejudice election.
Permanent bar on reassertionCarrier Global exits with no liability and no fee award — but no merits ruling
Carrier Global avoids any infringement finding and secures a permanent bar against re-litigation of this patent by this plaintiff. However, the absence of a merits adjudication means the patent’s validity was never tested in court. Carrier bears its own costs, consistent with the Rule 41 dismissal framework. The lack of a fee-shifting order under 35 U.S.C. § 285 suggests neither party sought an ‘exceptional case’ designation.
No liability — costs mutualUS7975051B2 remains valid but practically weakened against this defendant
The patent survives as an enforceable asset — the dismissal does not affect its validity or scope against third parties. However, the with-prejudice exit signals that Cloud Systems Holdco IP’s enforcement strategy against Carrier Global has reached a terminal point. For the broader building automation and connected device sector, the patent may still present a risk to other implementors of device management and routing architectures, and should be tracked accordingly.
Patent still active vs. third partiesFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Cloud Systems Holdco IP, LLC | Company | Patent holding entity — holder of US7975051B2 covering device management and routing systemsSearch in Eureka ↗ |
| Defendant | Carrier Global Corporation | Company | Carrier Global Corporation — global provider of HVAC, refrigeration, and building automation solutionsSearch in Eureka ↗ |
| Plaintiff counsel | Susan S. Q. Kalra | Attorney | Counsel for Cloud Systems Holdco IP, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Ramey LLP | Law Firm | Representing Cloud Systems Holdco IP, LLCSearch in Eureka ↗ |
| Defendant counsel | Aamir A. Kazi | Attorney | Counsel for Carrier Global CorporationSearch in Eureka ↗ |
| Defendant counsel | Christopher S. Marchese | Attorney | Counsel for Carrier Global CorporationSearch in Eureka ↗ |
| Defendant law firm | Fish & Richardson LLP | Law Firm | Representing Carrier Global CorporationSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | California Central District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal notice invokes Rule 41(a)(1)(A)(i) — the plaintiff’s unilateral right to exit before the defendant answers. The critical variable is the with-prejudice designation, which the plaintiff voluntarily added. This language operates as a final adjudication, precluding any future action by Cloud Systems Holdco IP on US7975051B2 against Carrier Global. The mutual cost-bearing provision is consistent with a negotiated or strategic exit rather than a contested merits ruling. No findings on infringement, validity, or claim scope were made.
US7975051B2 — Device management, routing, and control system
US7975051B2, filed under application number US11/744084, protects a system and method for managing, routing, and controlling devices and inter-device connections. This technical domain sits at the intersection of networked device management and control architecture — foundational IP for connected building systems, industrial IoT platforms, and any environment requiring coordinated device-to-device communication. The patent’s claims are broad enough to implicate a wide range of commercial implementations.
For the building automation and HVAC sector — where Carrier Global operates — device routing and control architectures are increasingly central to smart building platforms and energy management systems. A patent covering these methods represents a meaningful litigation risk for system integrators, platform providers, and OEMs whose products rely on inter-device communication frameworks. The fact that a well-resourced holding entity asserted this patent against a major industrial player underscores its perceived commercial leverage in the sector.
Should you run an FTO against US7975051B2?
Any company developing or deploying systems that manage, route, or control networked devices — particularly in building automation, HVAC, smart infrastructure, or industrial IoT — should assess exposure to US7975051B2. The patent’s with-prejudice dismissal against Carrier Global does not limit its enforceability against other parties. If your product involves inter-device connection management or centralized device routing, a formal FTO review is warranted before commercialisation or expansion.
PatSnap Eureka’s FTO Search Agent can map the full claim scope of US7975051B2 against your product architecture, identify relevant prior art, and surface related patents in the Cloud Systems Holdco IP portfolio. Eureka’s citation graph and family analysis tools help R&D and legal teams understand whether related continuation or divisional patents pose additional risk — ensuring your FTO review covers the full enforcement landscape, not just the asserted patent.
Run a freedom-to-operate analysis on US7975051B2 to assess your product’s exposure
Run FTO in Eureka →Similar patent infringement cases: device management and IoT in Central California
Explore related infringement actions involving device management, routing, and control patents litigated in the Central District of California by patent holding entities.
What this case signals for the building automation and IoT IP landscape
A pre-answer, with-prejudice dismissal in Central California typically signals early leverage exhausted or a quiet resolution — both worth monitoring.
Pre-answer dismissals with prejudice are rare — and often signal negotiation
Plaintiffs who elect with-prejudice under Rule 41(a)(1)(A)(i) are voluntarily surrendering future enforcement rights. This is uncommon absent some form of consideration — whether a license, covenant not to sue, or strategic withdrawal. Companies in the connected building and HVAC space should monitor whether Cloud Systems Holdco IP pursues similar actions against other defendants using US7975051B2.
US7975051B2 remains a live risk for IoT and building automation players
The dismissal extinguishes claims only against Carrier Global. Any company deploying device management, routing, or control architectures covered by US7975051B2 — particularly in HVAC, smart building, or industrial IoT contexts — should conduct an FTO review. Patent holding entities frequently file sequentially against multiple defendants across a technology sector.
Cloud v Carrier — key questions answered
The with-prejudice designation means Cloud Systems Holdco IP permanently surrendered its right to sue Carrier Global on US7975051B2. It carries the same preclusive effect as a final merits judgment, barring any future infringement action by the same plaintiff on the same patent against the same defendant.
The public record does not disclose whether a settlement was reached. The dismissal was filed under Rule 41(a)(1)(A)(i) before Carrier answered, and no settlement agreement appears on the docket. The with-prejudice designation and mutual cost-bearing provision are consistent with a negotiated resolution, but this cannot be confirmed from available records.
US7975051B2 covers a system and method for managing, routing, and controlling devices and inter-device connections. Carrier Global’s building automation and connected HVAC products likely implicate device networking architectures that fall within the patent’s claimed scope. The patent was asserted by Cloud Systems Holdco IP, a holding entity, in a single-patent infringement action filed in December 2023.
No. The dismissal was expressly made with prejudice as to the asserted patent — US7975051B2. This permanently bars Cloud Systems Holdco IP from bringing any new infringement action against Carrier Global based on that patent. The company could, however, assert different patents from its portfolio against Carrier in a new action.
Rule 41(a)(1)(A)(i) permits dismissal only before the defendant answers or moves for summary judgment. The pre-answer resolution — after 203 days — suggests the parties reached an accommodation or Cloud Systems Holdco IP reassessed its position before Carrier formally responded. Fish & Richardson, representing Carrier, is known for aggressive pre-answer defense posture including IPR strategy, which may have influenced the plaintiff’s decision.
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