Avant Location Technologies v. Ecobee: Smart Thermostat Patent Dispute Ends in Joint Dismissal

Case Overview

A patent infringement lawsuit targeting one of the smart home industry’s most recognized thermostat brands has quietly concluded — not with a courtroom verdict, but with a negotiated exit. On February 25, 2026, Judge Rodney Gilstrap of the U.S. District Court for the Eastern District of Texas granted a joint motion to dismiss in Avant Location Technologies, LLC v. Ecobee Technologies ULC (Case No. 2:23-cv-00354), closing a 940-day dispute over location-based technology patents embedded in Ecobee’s smart home product ecosystem.

The case centered on two U.S. patents — US9485621B2 and US9622032B2 — asserted against a sweeping range of Ecobee products, from smart thermostats to security bundles and occupancy sensors. The joint dismissal, with plaintiff’s claims dismissed with prejudice and defendant’s counterclaims dismissed without prejudice, signals a privately negotiated resolution that carries significant strategic implications for location technology patent assertion and smart home IP strategy.

The Parties

Patents at Issue

The two asserted patents share a common technological lineage within the location services and wireless communication patent landscape, a heavily litigated technical domain involving geofencing, occupancy detection, and proximity-based automation:

• • US9485621B2 — Directed to location-based communication and device management technologies
• • US9622032B2 — Related location technology claims with application to connected device environments

The Verdict & Legal Analysis

Litigation Timeline & Procedural History

The complaint was filed on July 31, 2023, in the Eastern District of Texas — a venue well-known for its patent-plaintiff-friendly reputation and Judge Gilstrap’s extensive IP docket. The case proceeded at the district court’s first-instance level and ran for 940 days before reaching its February 25, 2026 resolution.

While specific interim milestones — including claim construction hearings, summary judgment motions, or PTAB inter partes review filings — were not disclosed in available case records, the duration of nearly 2.6 years is consistent with full Eastern District patent litigation cycles that typically involve Markman proceedings, expert discovery, and pre-trial motion practice.

Judge Rodney Gilstrap, Chief Judge of the Eastern District of Texas, presided over the matter. Judge Gilstrap is one of the most experienced patent trial judges in the United States, having overseen more patent cases than virtually any other federal judge. His assignment alone signals the case’s procedural rigor and Ecobee’s exposure to sophisticated IP adjudication.

The joint motion to dismiss (Dkt. No. 60) served as the terminal filing, suggesting the parties reached a resolution — whether through license, settlement, or strategic withdrawal — prior to trial.

Outcome

Judge Gilstrap granted the Joint Motion to Dismiss on February 25, 2026. The court ordered:

• Plaintiff’s claims: DISMISSED WITH PREJUDICE — Avant cannot re-assert these specific infringement claims against Ecobee in future litigation.
• Defendant’s counterclaims: DISMISSED WITHOUT PREJUDICE — Ecobee retains the right to revive invalidity or other counterclaims if circumstances warrant.
• Costs and fees: Each party bears its own — a standard term suggesting a negotiated resolution rather than a finding of bad faith or exceptional case status.

No damages amount was publicly disclosed, and no injunctive relief was entered.

Verdict Cause Analysis

The dismissal with prejudice on Avant’s infringement claims — while preserving Ecobee’s counterclaims — reflects a carefully negotiated asymmetry. In NPE litigation, this structure frequently indicates that the plaintiff secured a licensing payment or settlement sufficient to justify permanently relinquishing its claims, while the defendant prudently retained its invalidity arguments as leverage or for potential future use against other assertions from the same patent family.

The breadth of accused products initially suggested significant royalty exposure for Ecobee. Location-based technologies embedded in occupancy sensors, geofencing-enabled thermostats, and mobile applications represent commercially active features — making the patents potentially high-value assets if valid and infringed.

The “each party bears its own costs” language is notable. Under Octane Fitness v. ICON Health (2014), courts may award attorney fees in exceptional patent cases. The absence of any fee award suggests neither party sought — or could credibly support — an exceptionality finding, reinforcing the interpretation of a negotiated exit.

Legal Significance

This case reinforces several patterns in location technology patent litigation:

1. Geofencing and occupancy-based patents remain active assertion targets in the smart home sector, particularly against companies whose products integrate location-aware automation.
2. The Eastern District of Texas continues to attract NPE litigation, even post-*TC Heartland*, when plaintiffs can establish proper venue.
3. Joint dismissals with asymmetric prejudice terms are an increasingly common resolution structure in NPE cases, balancing plaintiff finality with defendant optionality.