SharkNinja v. Dyson: 9-Patent Vacuum & Hair Care Infringement Suit Ends With Prejudice
SharkNinja Operating LLC, joined by Omachron entities, sued Dyson Limited and Dyson Technology Limited in Massachusetts District Court, asserting nine US patents spanning cordless vacuum and hair styling technology against over a dozen Dyson product lines. After 608 days of litigation, both sides filed a joint stipulation of dismissal with prejudice — each party bearing its own costs.
SharkNinja and Dyson settle a 9-patent vacuum and styling IP battle
Filed on 6 June 2023 in the District of Massachusetts before Judge Allison D. Burroughs, this infringement action pitted SharkNinja Operating LLC and SharkNinja Sales Company — together with patent-holding affiliates Omachron Alpha Inc. and Omachron Intellectual Property Inc. — against Dyson Limited and Dyson Technology Limited. The complaint asserted nine US patents (including US10568477B2, US8607407B2, and US11389038B2) against a broad swath of Dyson’s consumer product portfolio, including the Cyclone V10, V11, V12, V15 Detect, Gen5, Outsize, and Omni-glide vacuum lines, as well as the Dyson Airwrap and Humdinger hair care devices.
On 3 February 2025 — 608 days after filing — the parties submitted a joint stipulation of dismissal pursuant to Fed. R. Civ. P. 41(a)(1)(A)(ii). The dismissal is explicitly with prejudice under Rule 41(a)(1)(B), meaning SharkNinja cannot re-file the same claims in any US federal court. Crucially, the stipulation provides that each party bears its own attorneys’ fees and costs, signalling a negotiated resolution rather than a contested judgment on the merits.
A 608-day lifespan for a nine-patent, multi-product-line dispute is consistent with early-to-mid litigation settlement — likely after substantial claim construction briefing but before trial. The with-prejudice dismissal, combined with mutual cost-bearing, strongly suggests a negotiated commercial resolution, potentially including a cross-licensing arrangement or other business terms that are not disclosed in the public record. Whether any royalties, design-arounds, or licensing terms form part of the resolution remains unknown from public filings.
Filing to Dismissed with Prejudice in 608 days
608-day case duration — above average for multi-patent district court IP disputes
Joint dismissal with prejudice: what the stipulation means for both parties
Rule 41(a)(1)(A)(ii): joint stipulation bars re-filing
A dismissal with prejudice under Fed. R. Civ. P. 41(a)(1)(B) extinguishes the claims permanently. Unlike a without-prejudice dismissal, SharkNinja cannot reassert these nine patents against Dyson on the same accused products in any US federal court. The joint nature of the stipulation — requiring both parties’ signatures — indicates a mutually agreed exit rather than a unilateral withdrawal.
Permanent bar on re-filingSharkNinja’s with-prejudice exit forecloses future US claims on these patents
By stipulating to dismissal with prejudice, SharkNinja (and the Omachron entities) permanently waive the right to sue Dyson again under the nine asserted patents on these accused products. This is a meaningful concession, though it is consistent with a broader settlement that may deliver commercial value — such as a licensing fee or cross-license — outside the courtroom. The mutual cost-bearing clause suggests neither side extracted a clear litigation win.
Claims permanently waived vs. DysonDyson escapes ongoing litigation but faces a with-prejudice record
For Dyson, the with-prejudice dismissal removes the immediate litigation threat across its entire accused product range — from the V8 through Gen5 vacuums to the Airwrap and Humdinger. Dyson avoids any judicial finding of infringement or validity, preserving its freedom-to-operate narrative. However, the nine asserted patents remain valid and enforceable against other third parties, and any undisclosed licensing terms remain confidential.
No infringement finding; patents surviveNine patents still active — third-party exposure remains real
The nine Omachron/SharkNinja patents asserted here cover core vacuum cyclone and hair styling system technologies. The dismissal resolves only the SharkNinja-Dyson bilateral dispute. Competitors in the cordless vacuum and hair care appliance market — particularly those without a licensing arrangement — remain exposed to these patents. The breadth of the product range targeted (12+ SKUs) signals that the patent portfolio is commercially aggressive and actively enforced.
Portfolio remains enforceable vs. third partiesFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Sharkninja Operating, LLC | Company | Consumer appliance IP licensor — holder of US10568477B2 and 8 further vacuum/hair care patentsSearch in Eureka ↗ |
| Co-Plaintiff | Omachron Alpha, Inc. | Company | Search in Eureka ↗ |
| Co-Plaintiff | Omachron Intellectual Property, Inc. | Company | Search in Eureka ↗ |
| Co-Plaintiff | SharkNinja Sales Company | Company | Search in Eureka ↗ |
| Defendant | Dyson Limited | Individual | Dyson Limited — UK-headquartered consumer electronics manufacturer, cordless vacuum and hair styling productsSearch in Eureka ↗ |
| Co-Defendant | Dyson Technology Limited | Individual | Search in Eureka ↗ |
| Plaintiff counsel | Allyson Eve Parks | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Anthony David Brzozowski, II | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Benjamin Hershkowitz | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Brian A. Rosenthal | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Brian M. Buroker | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Claire Santiago | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Ina Kosova | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Jeffrey Dennhardt | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Joseph J. Mueller | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Omar Ali Khan | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Rachel S. Bier | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Todd Zubler | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Tyler John Earnest | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Vivian Lu | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Wendy W. Cai | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Yun Lin | Attorney | Counsel for Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Gibson, Dunn & Crutcher LLP | Law Firm | Representing Sharkninja Operating, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Wilmer Cutler Pickering Hale & Dorr LLP | Law Firm | Representing Sharkninja Operating, LLCSearch in Eureka ↗ |
| Defendant counsel | Bryan S. Hales | Attorney | Counsel for Dyson LimitedSearch in Eureka ↗ |
| Defendant counsel | Helena Kiepura | Attorney | Counsel for Dyson LimitedSearch in Eureka ↗ |
| Defendant counsel | Henry Richard Fildes | Attorney | Counsel for Dyson LimitedSearch in Eureka ↗ |
| Defendant counsel | Jay Emerick | Attorney | Counsel for Dyson LimitedSearch in Eureka ↗ |
| Defendant counsel | Julius Gamble , Jr. | Attorney | Counsel for Dyson LimitedSearch in Eureka ↗ |
| Defendant counsel | Mary Catherine Dahl | Attorney | Counsel for Dyson LimitedSearch in Eureka ↗ |
| Defendant counsel | Michael G. Strapp | Attorney | Counsel for Dyson LimitedSearch in Eureka ↗ |
| Defendant counsel | Nancy Braman | Attorney | Counsel for Dyson LimitedSearch in Eureka ↗ |
| Defendant counsel | Paul Steadman | Attorney | Counsel for Dyson LimitedSearch in Eureka ↗ |
| Defendant counsel | Paulina Starostka | Attorney | Counsel for Dyson LimitedSearch in Eureka ↗ |
| Defendant law firm | DLA Piper US LLP | Law Firm | Representing Dyson LimitedSearch in Eureka ↗ |
| Defendant law firm | DLA Piper LLP (US) | Law Firm | Representing Dyson LimitedSearch in Eureka ↗ |
| Defendant law firm | Kirkland & Ellis LLP | Law Firm | Representing Dyson LimitedSearch in Eureka ↗ |
| Presiding judge | Judge Allison D. Burroughs | Judge | Massachusetts District CourtSearch in Eureka ↗ |
Official order — verbatim text
The stipulation is explicit that dismissal of all Counts is with prejudice under Rule 41(a)(1)(B), and that each party bears its own costs and attorneys’ fees. The with-prejudice designation is the legally operative element: it functions as a final judgment on the merits for res judicata purposes, permanently barring SharkNinja from re-litigating these patent claims against Dyson on the accused products. The mutual cost-bearing clause is equally telling — it rules out a clear litigation winner and is consistent with a negotiated commercial resolution whose terms are not part of the public record.
US10568477B2 and 8 further patents — vacuum cyclone and hair styling systems
The nine asserted US patents span two distinct technology domains: cordless vacuum cyclone and filtration mechanics (the core of Dyson’s and SharkNinja’s stick vacuum lines) and hair styling system technology (relevant to the Dyson Airwrap and SharkNinja FlexStyle products). Several patents trace application dates to the mid-2010s, suggesting they protect technology that is now embedded in mature, commercially successful product generations. The inclusion of Omachron Alpha and Omachron Intellectual Property as co-plaintiffs indicates a deliberate IP holding structure built around these technical domains.
For the consumer appliance sector, this portfolio’s strategic significance is considerable. The nine patents collectively cover key performance differentiators in the premium cordless vacuum and hair care markets — markets where Dyson and SharkNinja are the dominant global competitors. Any manufacturer developing competing cyclone vacuum or air-wrap styling technology must assess these patents carefully. The fact that SharkNinja was able to assert them against over a dozen distinct Dyson SKUs — spanning entry-level through flagship tiers — suggests broad claim scope that could reach a wide range of product architectures.
Should you run an FTO against the SharkNinja/Omachron vacuum and styling patent portfolio?
If your R&D or product team is developing cordless stick vacuums, cyclone separation systems, robotic vacuums, or air-wrap/styling tool accessories, the nine patents asserted in this case represent a non-trivial clearance risk. The portfolio’s reach across 12+ Dyson SKUs — including flagship lines like the V15 Detect and Gen5 — demonstrates that the claims are broadly drawn. Companies launching in the premium cordless or hair care segment without a licence to this portfolio should prioritise FTO analysis before finalising product architecture.
PatSnap Eureka’s FTO Search Agent can map each of the nine asserted patents against your specific product claims, flag overlapping claim language, and surface prior art that could support design-around strategies. Eureka’s claim chart automation significantly compresses the time required to assess exposure across a multi-patent portfolio like this one — giving your IP and engineering teams actionable clearance intelligence at the design stage, not after launch.
Run a freedom-to-operate analysis on US10568477B2 to assess your product’s exposure
Run FTO in Eureka →Similar patent cases: vacuum and hair care appliance IP in US district courts
Explore comparable multi-patent infringement actions in the consumer appliance sector litigated before US district courts, particularly Massachusetts and Delaware.
What this case signals for the consumer appliance IP landscape
A nine-patent, multi-product showdown between two of the world’s largest vacuum brands tells the market something important about IP leverage in consumer appliances.
Omachron’s patent portfolio is a credible litigation weapon in vacuum tech
The Omachron entity structure — holding patents licenced to SharkNinja — reflects a sophisticated IP monetisation strategy. With nine US patents covering cyclone vacuum mechanics and hair styling systems, the portfolio has demonstrated reach across an entire competitor’s product line. Any appliance manufacturer without a cross-licence to this portfolio should treat it as a material FTO risk.
With-prejudice mutual dismissal is the fingerprint of a negotiated deal
When both sides walk away bearing their own costs after 608 days, the resolution is almost certainly commercial rather than litigative. This pattern — common in big-brand IP disputes — typically reflects a cross-licensing arrangement or design-change commitment. The absence of any damages judgment means neither party’s public position is formally undermined.
Sharkninja v Dyson — key questions answered
The case was dismissed with prejudice on 3 February 2025 via a joint stipulation under Fed. R. Civ. P. 41(a)(1)(A)(ii). All nine patent infringement counts were dismissed with each party bearing its own attorneys’ fees and costs. The with-prejudice designation means SharkNinja cannot re-file the same claims against Dyson in US federal court.
SharkNinja and the Omachron entities asserted nine US patents: US10568477B2, US8607407B2, US11389038B2, US10117550B1, US9301666B2, US11044979B2, US10327607B2, US10080472B2, and US10478030B2. The patents cover cordless vacuum cyclone separation, filtration, and hair styling system technologies.
The accused products included the Dyson Cyclone V10, V11, V12, V15 Detect, V15s Detect Submarine, V8, Gen5, Outsize, and Omni-glide vacuum lines, as well as the Dyson Airwrap and Dyson Humdinger. SharkNinja’s own FlexStyle Air Styling and Auto-Wrap Curler products were also referenced in the pleadings.
Not in a formal adjudicative sense. A joint stipulation of dismissal with prejudice reflects a mutually agreed exit, not a judicial finding in Dyson’s favour. There was no ruling on infringement or validity. The with-prejudice effect means SharkNinja cannot re-file, but the underlying patents remain valid and enforceable against other parties.
SharkNinja was represented by Gibson, Dunn & Crutcher LLP and Wilmer Cutler Pickering Hale & Dorr LLP. Dyson was represented by DLA Piper LLP (US) and Kirkland & Ellis LLP. The case was presided over by Judge Allison D. Burroughs in the District of Massachusetts.
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