Maytronics v. Chasing Innovation: Robotic Pool Cleaner Patent Case Dismissed With Prejudice
Israeli pool-care leader Maytronics Ltd brought a patent infringement action against Chasing Innovation and its US subsidiary over the Chasing CM600 robotic pool cleaner, asserting US10378229B2. The parties reached a stipulated dismissal with prejudice after 403 days — with each side bearing its own legal costs.
Maytronics and Chasing Innovation resolve robotic pool cleaner IP clash
On 11 September 2023, Maytronics Ltd — the Israel-based manufacturer behind the Dolphin line of robotic pool cleaners — filed a patent infringement complaint in the Western District of Washington against Chasing Innovation Technology Co. Ltd and its US arm, Chasing Technology (USA) LLC. The asserted patent, US10378229B2, covers technology central to autonomous robotic pool cleaning systems, and the accused product was the Chasing CM600, a direct market competitor.
The case closed on 18 October 2024 via a stipulated dismissal with prejudice under Federal Rule of Civil Procedure 41(a)(1)(A)(ii). That mechanism requires agreement from all parties and carries the same legal weight as a final judgment — all claims are extinguished and cannot be refiled. Critically, the parties agreed each side would bear its own attorneys’ fees and costs, a fee arrangement that is consistent with a negotiated resolution rather than a litigated outcome.
The 403-day lifespan suggests the parties conducted meaningful discovery or claim-construction proceedings before reaching agreement, though the public record does not disclose the specific commercial terms, if any, underlying the dismissal. The mutual fee-bearing arrangement is a common feature of confidential settlements, and the ‘with prejudice’ designation confirms Maytronics has permanently relinquished its infringement claims against the CM600 in this jurisdiction.
Filing to Dismissed with Prejudice in 403 days
403 days to resolution — slightly above median for W.D. Wash. patent cases that settle pre-trial
Dismissed with prejudice: what the stipulated termination means for both parties
FRCP 41(a)(1)(A)(ii): a consensual, permanent end to the case
A stipulated dismissal under Rule 41(a)(1)(A)(ii) requires written agreement of all parties. Unlike a unilateral voluntary dismissal, neither side can pursue these specific claims again — the dismissal ‘with prejudice’ operates as a final judgment on the merits. No court order is required; the filing itself closes the case. This is the preferred mechanism when parties reach a private resolution they do not wish to submit to judicial scrutiny.
Permanent — no refiling permittedMaytronics permanently drops its CM600 infringement claims
By agreeing to dismissal with prejudice, Maytronics surrenders its right to reassert these specific infringement claims against the Chasing CM600 under US10378229B2 in any future action. This does not extinguish the patent itself, which remains in force and enforceable against other parties or products. The fee-neutral arrangement suggests neither party conceded liability, and any commercial terms agreed between them remain confidential.
Patent US10378229B2 remains enforceableChasing Innovation secures permanent release from these claims
Chasing Innovation and its US entity receive a full, permanent release from the asserted infringement claims relating to the CM600 and US10378229B2. The with-prejudice designation creates issue-preclusion protection: Maytronics cannot relitigate these specific claims. However, the dismissal does not constitute a judicial finding of non-infringement or invalidity, meaning the patent’s scope was never adjudicated — a nuance that matters if future product variants are developed.
No invalidity finding — patent scope unresolvedBilateral cost-bearing signals a negotiated commercial resolution
When both sides agree to bear their own costs in a with-prejudice dismissal, it typically signals a negotiated arrangement — potentially a licence, cross-licensing deal, or product design modification — rather than one party capitulating. For the robotic pool cleaner sector, the case signals that Maytronics is willing to enforce US10378229B2 aggressively. Competitors marketing similar autonomous pool-cleaning products should treat this patent as an active enforcement asset.
Active enforcement signal for sectorFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Maytronics Ltd | Company | Robotic pool cleaner manufacturer — holder of US10378229B2Search in Eureka ↗ |
| Defendant | Chasing Innovation Technology Co Ltd | Company | Chasing Innovation Technology Co. Ltd and US subsidiary; maker of the CM600 robotic pool cleanerSearch in Eureka ↗ |
| Co-Defendant | Chasing Technology (USA), LLC | Company | Search in Eureka ↗ |
| Plaintiff counsel | Christopher M. Wyant | Attorney | Counsel for Maytronics LtdSearch in Eureka ↗ |
| Plaintiff counsel | Shelby Renee Stoner | Attorney | Counsel for Maytronics LtdSearch in Eureka ↗ |
| Plaintiff counsel | Tyler K Lichter | Attorney | Counsel for Maytronics LtdSearch in Eureka ↗ |
| Plaintiff law firm | GALANDA BROADMAN, PLLC | Law Firm | Representing Maytronics LtdSearch in Eureka ↗ |
| Plaintiff law firm | K&L Gates LLP (WA) | Law Firm | Representing Maytronics LtdSearch in Eureka ↗ |
| Defendant counsel | Alexander Englehart | Attorney | Counsel for Chasing Innovation Technology Co LtdSearch in Eureka ↗ |
| Defendant counsel | Donald R. McPhail | Attorney | Counsel for Chasing Innovation Technology Co LtdSearch in Eureka ↗ |
| Defendant counsel | Eric Schweibenz | Attorney | Counsel for Chasing Innovation Technology Co LtdSearch in Eureka ↗ |
| Defendant counsel | John T Fetters | Attorney | Counsel for Chasing Innovation Technology Co LtdSearch in Eureka ↗ |
| Defendant counsel | Valerie A Walker | Attorney | Counsel for Chasing Innovation Technology Co LtdSearch in Eureka ↗ |
| Defendant law firm | Merchant & Gould (VA) | Law Firm | Representing Chasing Innovation Technology Co LtdSearch in Eureka ↗ |
| Defendant law firm | STOKES LAWRENCE PS (SEATTLE) | Law Firm | Representing Chasing Innovation Technology Co LtdSearch in Eureka ↗ |
| Presiding judge | Judge Jamal N Whitehead | Judge | Washington Western District CourtSearch in Eureka ↗ |
Official order — verbatim text
The stipulation is drafted in unambiguous terms: all claims are dismissed in their entirety with prejudice, with no carve-outs or reservations. The FRCP 41(a)(1)(A)(ii) citation confirms both parties consented, foreclosing any future re-filing of these specific claims. Notably, the stipulation is silent on any underlying commercial terms, which is typical where a private licence or settlement agreement exists. The fee-neutral provision — each party bears its own costs — is inconsistent with a clear litigated win for either side, and suggests the resolution was commercially negotiated rather than legally compelled.
US10378229B2 — autonomous robotic pool cleaner navigation technology
US10378229B2, filed under application number US14/445082, protects technology in the domain of autonomous robotic pool cleaning — specifically the navigation, movement, and operational mechanics that enable a robotic device to traverse and clean pool surfaces without manual guidance. The patent sits within a commercially significant segment of the broader home and commercial pool-care market, where automation and connectivity features are primary competitive differentiators.
For Maytronics — whose Dolphin brand commands substantial market share globally — this patent represents a core piece of its IP arsenal against lower-cost entrants from Asia seeking US market access. The Chasing CM600’s positioning as a direct competitor makes this enforcement action strategically coherent. Any company developing autonomous underwater cleaning or navigation robotics for the residential or commercial pool sector should conduct claim-level FTO analysis against US10378229B2 before US market entry.
Should you run an FTO against US10378229B2 before launching a robotic pool cleaner?
If your R&D team is developing or sourcing autonomous robotic pool cleaners for the US market, US10378229B2 is a non-trivial enforcement risk. Maytronics has demonstrated willingness to file suit in federal court — and to sustain litigation for over a year. The patent’s claims were never construed or invalidated in this case, meaning their full scope remains untested and potentially broad. Distributors importing competing products should be equally attentive.
PatSnap Eureka’s FTO Search Agent can map the claim landscape of US10378229B2 against your product’s technical specifications, flag overlapping claims, and surface prior art that could support an invalidity argument or design-around strategy. Given the lack of a claim construction record in this case, a proactive FTO analysis is materially more valuable — and more urgent — than in cases where judicial narrowing has already occurred.
Run a freedom-to-operate analysis on US10378229B2 to assess your product’s exposure
Run FTO in Eureka →Similar robotic pool cleaner and autonomous device patent cases
Explore related patent infringement actions involving autonomous cleaning robotics and underwater navigation technology litigated in Western District of Washington and comparable US courts.
What this case signals for the robotic pool cleaner IP landscape
Maytronics’ willingness to litigate in federal court over pool-cleaning robotics IP sends a clear message to market entrants and existing competitors alike.
US10378229B2 is an active enforcement patent — monitor it closely
Maytronics initiated federal litigation within months of identifying the CM600 as a potential infringer. Companies developing or distributing robotic pool cleaners in the US market should treat US10378229B2 as a live enforcement risk. The patent’s continued validity and the with-prejudice dismissal — rather than a court finding of non-infringement — means its claims have never been invalidated.
No invalidity ruling creates ongoing uncertainty for CM600 successors
Because the case resolved before any claim construction or merits ruling, the scope of US10378229B2 remains judicially untested. Chasing Innovation’s next-generation products may face re-exposure if they embody the same claimed features. The absence of an IPR filing in the public record suggests Chasing did not pursue a parallel invalidity route — a strategic gap worth noting.
Maytronics v Chasing — key questions answered
The case was dismissed with prejudice by stipulation of all parties under FRCP 41(a)(1)(A)(ii) on 18 October 2024, after 403 days of litigation. Each party agreed to bear its own attorneys’ fees and costs. No merits ruling, claim construction order, or invalidity finding was issued.
Maytronics asserted US10378229B2 (application no. US14/445082), a patent covering autonomous robotic pool cleaner technology. The accused product was the Chasing CM600 robotic pool cleaner sold by Chasing Innovation Technology Co. Ltd and its US subsidiary Chasing Technology (USA) LLC.
No. A dismissal with prejudice under FRCP 41(a)(1)(A)(ii) reflects a consensual end to the litigation and carries no judicial finding on patent validity or infringement. The patent US10378229B2 remains in force and enforceable. The dismissal only bars Maytronics from re-asserting these specific claims against the CM600.
Under Rule 41(a)(1)(A)(ii), both parties must agree in writing to dismiss the action. A ‘with prejudice’ designation means the claims are permanently extinguished and cannot be refiled. No court order is required; the signed stipulation itself closes the case. It is the standard mechanism for formalising a private settlement in US federal patent litigation.
The public record does not disclose any underlying commercial terms. However, the combination of a with-prejudice dismissal and a fee-neutral arrangement — where each party bears its own costs — is typically consistent with a negotiated resolution such as a patent licence, royalty agreement, or product design modification. Neither party made public admissions, and the specific terms, if any, remain confidential.
PatSnap Eureka searches patents and litigation data to answer instantly.