EcoFactor v. Google & Ecobee: Federal Circuit Appeal Voluntarily Dismissed
EcoFactor, Inc. brought a patentability appeal to the Federal Circuit against Google LLC and Ecobee Technologies ULC, asserting US10534382B2 — a patent covering wireless devices as sensors in energy management systems. After 518 days, all parties stipulated to voluntary dismissal of the appeal in November 2023.
Smart thermostat IP appeal ends by stipulation after 518 days
EcoFactor, Inc. filed Federal Circuit Appeal No. 22-1971 on 30 June 2022, challenging a patentability determination involving US10534382B2 — a patent directed to systems and methods for using a wireless device as a sensor for an energy management system. The defendants/appellees were Google LLC and Ecobee Technologies ULC, alongside Ecobee, Inc. The case was heard at the Court of Appeals for the Federal Circuit, a specialist appellate tribunal for U.S. patent matters.
The recorded basis of termination is voluntary dismissal. The docket order states that on 28 November 2023, EcoFactor, Inc., Google LLC, and Ecobee Technologies ULC stipulated to voluntary dismissal of Appeal Nos. 2022-1971 and 2022-1974. No merits ruling was issued by the Federal Circuit. The specific terms underlying the stipulation are not disclosed in the available public record.
The appeal ran for 518 days before the parties reached a joint stipulation, suggesting that discussions between the parties progressed sufficiently to render continued appellate proceedings unnecessary. The concurrent dismissal of the related Appeal No. 2022-1974 alongside 22-1971 indicates a coordinated resolution across both proceedings. What drove the parties to stipulate — and on what terms — is not disclosed in the public record.
See Complete Case & Patent Analysis →Filing to Voluntary dismissal in 518 days
518 days from filing to voluntary dismissal at the Federal Circuit
US10534382B2 — Wireless device as sensor for energy management systems
Any R&D or product team building systems that use wireless devices — smartphones, IoT endpoints, or connected hubs — as environmental sensors feeding into an energy or HVAC management platform should treat US10534382B2 as a priority FTO target. The Federal Circuit issued no validity ruling, so the patent cannot be assumed invalidated. This is particularly relevant for smart thermostat, building automation, and demand-response energy platform developers.
Official order — verbatim text
The stipulated voluntary dismissal, entered 28 November 2023, terminated the Federal Circuit appeal without any ruling on the patentability questions raised. Because no merits judgment was issued, the appellate record provides no guidance on claim validity or scope — the underlying patentability determination from the proceedings below remains the operative record for both parties.
Voluntarily dismissed: what the stipulated exit means for both parties
Voluntary dismissal by stipulation at the Federal Circuit
A voluntary dismissal by stipulation requires agreement from all parties and results in the appeal being terminated without a merits ruling. The Federal Circuit issued no judgment on patentability. The dismissal of both Appeal Nos. 2022-1971 and 2022-1974 simultaneously suggests a coordinated resolution. The specific conditions of the stipulation are not disclosed in the available public record.
No merits ruling issuedEcoFactor exits appeal — no Federal Circuit ruling on patent validity
Because the dismissal was voluntary and by stipulation, the Federal Circuit did not issue a ruling affirming or reversing the underlying patentability determination. Whether US10534382B2 emerges strengthened, restricted, or unchanged depends on the underlying proceedings that generated the appeal — details of any agreed resolution are not in the public record.
Validity question unresolved at FCGoogle and Ecobee avoid a Federal Circuit patentability ruling
Google LLC and Ecobee Technologies ULC co-stipulated to the dismissal, meaning neither a win nor a loss on the merits was recorded against them at the appellate level. The absence of a Federal Circuit ruling on US10534382B2 leaves the patent's enforceability status dependent on the lower-level proceedings rather than appellate disposition.
No adverse FC judgmentUnresolved validity leaves uncertainty in smart thermostat IP
For the connected-home and smart thermostat sector, the absence of a Federal Circuit merits ruling on US10534382B2 means the patent's scope and validity remain judicially unresolved at the appellate level. Competitors and product teams working on wireless-sensor-based energy management systems should treat the patent as an active risk until a definitive validity ruling is on record.
Monitor patent enforceabilityFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | EcoFactor, Inc | Company | /Search in Eureka ↗ |
| Defendant | Google, LLC | Company | /Search in Eureka ↗ |
| Co-Defendant | Ecobee Technologies, ULC | Company | Search in Eureka ↗ |
| Co-Defendant | Ecobee, Inc | Company | Search in Eureka ↗ |
| Plaintiff counsel | Brian David Ledahl | Attorney | Counsel for EcoFactor, IncSearch in Eureka ↗ |
| Plaintiff counsel | Jonathan Link | Attorney | Counsel for EcoFactor, IncSearch in Eureka ↗ |
| Plaintiff counsel | Reza Mirzaie | Attorney | Counsel for EcoFactor, IncSearch in Eureka ↗ |
| Plaintiff law firm | Russ August & Kabat LLP | Law Firm | Representing EcoFactor, IncSearch in Eureka ↗ |
| Defendant counsel | Andrew Baluch | Attorney | Counsel for Google, LLCSearch in Eureka ↗ |
| Defendant counsel | Elizabeth Laughton | Attorney | Counsel for Google, LLCSearch in Eureka ↗ |
| Defendant counsel | Matthew A. Smith | Attorney | Counsel for Google, LLCSearch in Eureka ↗ |
| Defendant law firm | Smith Baluch LLP | Law Firm | Representing Google, LLCSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Court of Appeals for the Federal CircuitSearch in Eureka ↗ |
R&D signals in wireless sensor energy management IP
Forward-looking patent and R&D intelligence derived from EcoFactor v. Google & Ecobee — covering filing trends, portfolio dynamics, and white space in smart home energy management.
EcoFactor's energy management patent filing activity
EcoFactor has demonstrated sustained assertion of energy management system patents against major connected-home platform operators. Monitoring their USPTO prosecution activity — including continuations from the US10534382B2 family — can reveal whether new claims are being drafted to capture emerging wireless-sensor and AI-driven HVAC architectures.
EcoFactor portfolio watchFiling trends in wireless-device-as-sensor HVAC control
Patent filing activity in the wireless-device-as-sensor segment of HVAC and building energy management has grown alongside smartphone proliferation and IoT adoption. Tracking IPC/CPC classes covering demand-response and sensor-fusion thermostat systems can surface competitive filers and whitespace opportunities ahead of product launches.
Sensor-HVAC filing trendsGoogle and Ecobee's defensive patent position in smart home energy
Google (Nest) and Ecobee are active filers in connected-home energy management. Analysing their patent portfolios for defensive coverage around wireless-sensor-based climate control — and identifying where their filings cluster — provides strategic context for any company considering entering or competing in this product category.
Google Ecobee IP defenceAdjacent innovation gaps near US10534382B2's claims
The claim space around using wireless devices as sensors for energy management leaves potential white space in edge-computing approaches, federated sensor networks, and AI-driven predictive HVAC adjustment. R&D teams can use claim mapping against US10534382B2 to identify design-around architectures and defensible innovation corridors in the smart building energy domain.
Energy management white spaceSimilar Federal Circuit appeals in smart home and energy management patent disputes
Explore related Federal Circuit patentability appeals involving wireless energy management systems, smart thermostat patents, and IoT-connected device IP disputes.
What this case signals for the smart home energy management IP landscape
A stipulated Federal Circuit exit across two linked appeals signals coordinated IP strategy — and unresolved patent risk for the wider smart thermostat sector.
Concurrent dismissal of two appeals signals coordinated resolution
The simultaneous stipulated dismissal of Appeal Nos. 2022-1971 and 2022-1974 strongly suggests the parties reached a broader arrangement covering both proceedings. Practitioners monitoring EcoFactor's enforcement posture should track any subsequent licensing activity or new filings against smart thermostat vendors.
US10534382B2 carries unresolved Federal Circuit validity status
No appellate merits ruling was issued, leaving US10534382B2's validity undetermined at the Federal Circuit level. Companies building wireless-sensor energy management products should conduct FTO analysis against this patent before assuming it was invalidated in the underlying proceedings.
EcoFactor v Google — key questions answered
The appeal was voluntarily dismissed. On 28 November 2023, EcoFactor, Inc., Google LLC, and Ecobee Technologies ULC stipulated to voluntary dismissal of Appeal Nos. 2022-1971 and 2022-1974. The Federal Circuit issued no merits ruling on patentability. The specific terms of the stipulation are not disclosed in the available public record.
The patent at issue is US10534382B2 (application no. US16/374085), covering a system and method for using a wireless device as a sensor for an energy management system. The verdict cause is recorded as patentability — specifically an invalidity/cancellation action.
No. The Federal Circuit issued no patentability ruling. The appeal was terminated by voluntary dismissal on 28 November 2023 following a stipulation by all parties. The patent's validity at the Federal Circuit level remains judicially unresolved. The underlying proceedings that generated the appeal are the operative record.
The docket records that both appeals were dismissed by the same stipulation entered 28 November 2023. The concurrent dismissal is consistent with a coordinated resolution across related proceedings. The specific reasons or terms driving the joint dismissal are not disclosed in the public record.
A voluntary dismissal without a Federal Circuit merits ruling leaves US10534382B2's appellate validity status unresolved. Companies building products that use wireless devices as sensors in energy or HVAC management systems cannot assume the patent was invalidated. An FTO analysis against US10534382B2 and its patent family is advisable before committing to product architectures in this space.
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