Lime Green Lighting v. Savant Systems: Smart Lighting Patent Dismissed in 10 Days
Lime Green Lighting, LLC filed a patent infringement action against smart home technology company Savant Systems, Inc. in the Southern District of New York, asserting US9699874B2 covering self-adaptive scheduled lighting control. The case was voluntarily dismissed without prejudice just 10 days after filing, before Savant filed any responsive pleading.
A 10-Day Patent Suit: Pre-Answer Dismissal in Smart Lighting Dispute
On January 3, 2025, Lime Green Lighting, LLC filed a patent infringement action against Savant Systems, Inc. in the United States District Court for the Southern District of New York, assigned to Judge Jennifer L. Rochon. The suit asserted US9699874B2, which covers a system, method, and apparatus for self-adaptive scheduled lighting control — a technology directly relevant to the smart home and connected lighting automation sector in which Savant operates.
On January 13, 2025, just ten days after filing, Lime Green Lighting filed a notice of voluntary dismissal pursuant to Federal Rule of Civil Procedure 41(a)(1)(A)(i), which permits a plaintiff to dismiss unilaterally before the defendant has answered or moved for summary judgment. The dismissal was expressly designated as WITHOUT PREJUDICE as to the asserted patent, meaning Lime Green Lighting retains the right to reassert US9699874B2 against Savant or other parties in future litigation. Each party was ordered to bear its own costs, expenses, and attorneys’ fees.
The extreme brevity of this case — closed in 10 days without any substantive litigation activity — is notable and suggests the dismissal may have been driven by a pre-litigation settlement, licensing negotiation, or a strategic recalibration of enforcement posture. The public record does not disclose whether any commercial agreement was reached. The without-prejudice designation keeps all options open for Lime Green Lighting and warrants monitoring by competitors and licensees active in smart lighting and home automation.
Filing to Voluntary dismissal in 10 days
10 days — closed before defendant answered; among the shortest patent case durations on record
Voluntarily dismissed without prejudice: what the terms mean for both parties
Rule 41(a)(1)(A)(i): plaintiff’s unilateral exit before any answer
Federal Rule 41(a)(1)(A)(i) allows a plaintiff to dismiss an action as of right, without a court order, provided the defendant has not yet filed an answer or a motion for summary judgment. Here, Savant had not responded, so Lime Green Lighting could exit unilaterally. The dismissal notice itself closes the case — no judicial approval is required. This is the cleanest procedural exit available to a patent plaintiff.
Pre-answer voluntary dismissalWithout prejudice means the patent fight is not over
A dismissal without prejudice does not adjudicate the merits. Lime Green Lighting explicitly stated the dismissal is without prejudice as to the asserted patent, preserving its right to refile against Savant or any other party. By contrast, a dismissal with prejudice would have barred re-litigation. The public record here is unambiguous: this is a without-prejudice exit, not a final resolution of the patent’s enforceability or validity.
Patent remains assertableSavant escapes this action — but exposure persists
Savant Systems faces no adverse judgment and incurs no court-ordered costs from this proceeding. However, because the dismissal is without prejudice, Savant cannot treat this as a final resolution. The patent US9699874B2 remains valid and enforceable, and Lime Green Lighting retains full standing to refile. Savant may wish to evaluate its freedom to operate in self-adaptive lighting control to assess ongoing exposure.
No judgment; risk remains10-day lifecycle suggests a deal or strategic pivot — watch for refiling
Cases dismissed this quickly before any defendant response typically suggest one of three scenarios: a licensing or settlement agreement reached privately, a decision to refile in a different venue, or a tactical withdrawal pending claim chart refinement. The smart home and connected lighting sector should treat this as an unresolved enforcement action. Competitors deploying self-adaptive or scheduled lighting automation should monitor US9699874B2 closely.
Enforcement risk ongoingFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Lime Green Lighting, LLC | Company | Smart lighting IP licensor — holder of US9699874B2 covering self-adaptive scheduled lighting controlSearch in Eureka ↗ |
| Defendant | Savant Systems, Inc. | Company | Savant Systems, Inc. — smart home automation and connected lighting technology companySearch in Eureka ↗ |
| Plaintiff counsel | David John Hoffman | Attorney | Counsel for Lime Green Lighting, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Law Office David J. Hoffman | Law Firm | Representing Lime Green Lighting, LLCSearch in Eureka ↗ |
| Presiding judge | Judge Jennifer L. Rochon | Judge | New York Southern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal notice expressly invokes Rule 41(a)(1)(A)(i) and designates the dismissal as without prejudice as to the asserted patent. This phrasing is significant: it forecloses any argument that the patent’s enforceability was conceded or adjudicated. No merits determination was reached. The mutual cost-bearing provision, while standard in Rule 41 exits, suggests neither party sought to leverage the dismissal as a litigation advantage — consistent with a negotiated or strategic resolution rather than a pure plaintiff retreat.
US9699874B2 — Self-Adaptive Scheduled Lighting Control System
US9699874B2, filed under application number US14/851976, protects a system, method, and apparatus for self-adaptive scheduled lighting control. The patent addresses automated lighting management that adjusts to real-world conditions — such as occupancy patterns, time-of-day scheduling, and environmental inputs — rather than operating on fixed, manual schedules. This positions the patent squarely within the smart building and connected home automation domain, where adaptive control logic is a core differentiator.
The commercial significance of this patent lies in its applicability to a broad range of smart lighting products and platforms. Savant Systems is one of many companies deploying automated and scene-based lighting control in residential and commercial smart home installations. The patent’s claims on self-adaptive scheduling logic could apply to any platform where lighting responds dynamically to sensor data, user behavior, or algorithmic scheduling — making it strategically relevant beyond this single defendant.
Should your team run an FTO analysis against US9699874B2?
Any company developing or commercialising smart lighting systems with automated scheduling, occupancy-responsive control, or adaptive scene management should assess their exposure to US9699874B2. The patent’s claims on self-adaptive scheduling logic are broad enough to potentially capture a wide range of smart home platforms, commercial lighting automation systems, and IoT-integrated luminaire products. With the case dismissed without prejudice, the patent remains fully enforceable.
PatSnap Eureka’s FTO Search Agent enables R&D and IP teams to map product features against the claim scope of US9699874B2 in minutes. Run a targeted claim-by-claim analysis, identify design-around opportunities, and benchmark against the existing prior art landscape — before the next complaint is filed. Proactive FTO review is the most cost-effective way to manage exposure from a patent that has already been asserted once.
Run a freedom-to-operate analysis on US9699874B2 to assess your product’s exposure
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What this case signals for the smart lighting and home automation IP landscape
A 10-day filing-to-dismissal cycle rarely signals defeat — it more often signals a deal in progress or a pivot in enforcement strategy.
Without-prejudice dismissals preserve full enforcement optionality
Lime Green Lighting’s explicit without-prejudice designation means US9699874B2 can be reasserted at any time within the statute of limitations. Companies in the smart lighting and home automation space should not treat this case closure as a signal that the patent has been abandoned or licensed broadly. Monitoring for refiling activity is warranted.
Pre-answer dismissals often precede private licensing resolutions
When a plaintiff voluntarily dismisses within days of filing — before any substantive exchange with the defendant — it frequently indicates that a licensing conversation or pre-litigation settlement was already underway. The cost-bearing clause (each party bears its own fees) is consistent with a negotiated exit rather than a unilateral retreat.
Lime v Savant — key questions answered
Lime Green Lighting, LLC filed a patent infringement suit against Savant Systems, Inc. in the Southern District of New York on January 3, 2025, asserting US9699874B2. On January 13, 2025 — just 10 days later — Lime Green Lighting voluntarily dismissed the action without prejudice under Rule 41(a)(1)(A)(i), before Savant filed any responsive pleading. Each party bears its own costs.
A without-prejudice dismissal means no merits determination was made and the patent’s validity and enforceability were not adjudicated. Lime Green Lighting retains the right to refile suit asserting US9699874B2 against Savant Systems or any other party. The patent remains active and enforceable, and the dismissal does not constitute a license or a waiver of claims.
US9699874B2, filed under application number US14/851976, covers a system, method, and apparatus for self-adaptive scheduled lighting control. The patent relates to automated lighting management that adapts dynamically to scheduling, occupancy, or environmental inputs rather than relying on fixed manual programming — core functionality in smart home and commercial building lighting automation systems.
Pre-answer voluntary dismissals this soon after filing typically suggest one of several scenarios: a private licensing or settlement agreement reached before litigation escalated, a decision to refile in a different venue, or a tactical withdrawal to refine claim charts or expand the defendant pool. The public record in this case does not disclose the specific reason, and the without-prejudice designation preserves all future enforcement options.
Savant Systems received no adverse judgment and owes no court-ordered costs. However, because the dismissal is explicitly without prejudice, Savant cannot treat this case as a final resolution. US9699874B2 remains enforceable, and Lime Green Lighting could refile at any time within the applicable statute of limitations. Savant may benefit from a proactive freedom-to-operate analysis against the asserted patent’s claim scope.
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