Helix Microinnovations v. Swissbit NA: Chip-on-Board Patent Action Dismissed in 33 Days
Helix Microinnovations LLC filed an infringement action against Swissbit NA, Inc. in the Southern District of New York asserting US7238550B2, a patent covering methods and apparatus for fabricating Chip-on-Board modules. The case was voluntarily dismissed without prejudice just 33 days after filing, before Swissbit had answered the complaint.
A 33-Day Pre-Answer Dismissal in a Chip-on-Board Infringement Action
On 23 August 2024, Helix Microinnovations LLC commenced an infringement action against Swissbit NA, Inc. in the U.S. District Court for the Southern District of New York before Judge Alvin K. Hellerstein. The sole patent in suit was US7238550B2, directed to methods and apparatus for fabricating Chip-on-Board (CoB) modules — a technology central to compact, high-density memory and embedded computing products. Swissbit NA, a North American subsidiary operating in the flash storage and embedded computing market, was the named defendant.
On 25 September 2024 — just 33 days after filing — Helix Microinnovations filed a notice of voluntary dismissal pursuant to Federal Rule of Civil Procedure 41(a)(1)(A)(i), terminating the action without prejudice. Because Swissbit NA had not yet served an answer or moved for summary judgment, the plaintiff was entitled to dismiss as of right, requiring no court order. The without-prejudice designation means the dismissal carries no res judicata effect on the underlying infringement claims.
A dismissal of this speed — before any responsive pleading — is consistent with several scenarios: pre-suit settlement or licensing discussions reaching a resolution, a strategic reassessment of claim scope or defendant identity, or a decision to refile in a different venue. The public record is silent on which factor drove the outcome. What is clear is that no merits ruling was issued, no claim construction occurred, and the patent’s validity and infringement questions remain entirely open.
Filing to Voluntary dismissal in 33 days
33 days — resolved before defendant’s answer, well under median district court lifespan
Voluntarily dismissed: what this pre-answer exit means for both parties
Rule 41(a)(1)(A)(i): dismissal as of right, no court order needed
Federal Rule of Civil Procedure 41(a)(1)(A)(i) permits a plaintiff to dismiss an action without a court order at any time before the defendant serves an answer or a motion for summary judgment. Helix invoked this rule while Swissbit was still within its response window. The dismissal is self-executing — it takes effect upon filing of the notice and requires no judicial approval.
Pre-answer voluntary dismissalNo merits bar: Helix may refile the same claims
A without-prejudice dismissal does not adjudicate the underlying infringement claims and does not bar refiling. Helix Microinnovations retains the right to assert US7238550B2 against Swissbit NA — or other defendants — in a future action. The public record does not specify whether a licensing agreement, a settlement, or a purely strategic decision drove the exit. Those distinctions carry very different commercial consequences but are not disclosed here.
Refiling right preservedSwissbit exits without prejudice — exposure not eliminated
Swissbit NA avoids any adverse merits ruling and incurs no court-ordered liability from this proceeding. However, because the dismissal is without prejudice, its legal exposure under US7238550B2 is not extinguished. Absent a license or settlement covering the patent, Swissbit faces the prospect of a refiled action. Companies in this position typically assess whether to seek a covenant not to sue or evaluate the patent’s validity through inter partes review.
No merits ruling; exposure remainsCoB module makers: US7238550B2 remains an active enforcement risk
The swift, pre-answer dismissal leaves the patent’s enforceability entirely unresolved. For manufacturers and integrators working with Chip-on-Board module technology — particularly in flash storage and embedded computing — US7238550B2 continues to represent a potential infringement risk. The case suggests Helix Microinnovations is an active assertion entity monitoring this space, and the without-prejudice exit keeps future enforcement options open against the broader industry.
Patent enforcement risk persistsFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Helix Microinnovations LLC | Company | IP assertion entity — holder of US7238550B2 covering Chip-on-Board module fabricationSearch in Eureka ↗ |
| Defendant | Swissbit NA, Inc. | Company | Swissbit NA, Inc. — North American flash storage and embedded computing providerSearch in Eureka ↗ |
| Plaintiff counsel | Isaac Rabicoff | Attorney | Counsel for Helix Microinnovations LLCSearch in Eureka ↗ |
| Plaintiff law firm | Rabicoff Law LLC | Law Firm | Representing Helix Microinnovations LLCSearch in Eureka ↗ |
| Defendant counsel | Nolan Christopher Burkhouse | Attorney | Counsel for Swissbit NA, Inc.Search in Eureka ↗ |
| Defendant law firm | Paul Frank + Collins P.C. | Law Firm | Representing Swissbit NA, Inc.Search in Eureka ↗ |
| Presiding judge | Judge Alvin K. Hellerstein | Judge | New York Southern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal notice invokes Rule 41(a)(1)(A)(i) precisely, confirming this is a plaintiff-initiated exit as of right rather than a court-ordered or stipulated dismissal. The explicit statement that ‘Defendant has not yet answered the Complaint or moved for summary judgment’ is a jurisdictional prerequisite for this procedural mechanism. No merits finding — on infringement, validity, or damages — attaches to this order. The without-prejudice designation is the operative term: it preserves Helix’s full enforcement rights under US7238550B2 going forward.
US7238550B2 — Methods and Apparatus for Fabricating Chip-on-Board Modules
US7238550B2, filed under application number US10/371800, covers methods and apparatus for fabricating Chip-on-Board modules — a packaging technology in which semiconductor dies are mounted directly onto a substrate, enabling compact, high-density configurations used in flash storage, embedded computing, and industrial memory applications. The patent’s claim scope around fabrication methods makes it potentially relevant to a broad range of CoB manufacturing processes rather than a narrow product embodiment.
For the flash storage and embedded computing sector, US7238550B2 represents the kind of process-level patent that can be asserted across multiple product lines and manufacturers. Swissbit NA’s position in the industrial flash and embedded memory market places it squarely within the technology space the patent addresses. The fact that this patent has been asserted in active litigation signals it has been evaluated by enforcement counsel as commercially viable — a material consideration for any competitor or supplier operating in the CoB module supply chain.
Should your team run an FTO against US7238550B2?
Any organisation designing, manufacturing, or integrating Chip-on-Board modules — particularly in industrial flash storage, embedded memory, or compact computing hardware — should assess its exposure to US7238550B2. The patent’s focus on fabrication methods means the risk is not limited to a single product form factor; it may extend to process steps used across a product family. This case demonstrates that the patent holder is prepared to assert the patent in federal court.
PatSnap Eureka’s FTO Search Agent allows R&D and IP teams to map their specific fabrication process steps against the claim language of US7238550B2, identify relevant prior art that may support a validity challenge, and surface related continuation patents in the same family. Running this analysis before a complaint is served is significantly more cost-effective than mounting a defence after the fact — and the without-prejudice dismissal here means a new action could be filed at any time.
Run a freedom-to-operate analysis on US7238550B2 to assess your product’s exposure
Run FTO in Eureka →Similar Chip-on-Board and embedded memory patent cases in US district courts
Cases involving Chip-on-Board fabrication and embedded flash memory patents asserted in the Southern District of New York and peer district courts.
What this case signals for the Chip-on-Board and embedded memory IP landscape
A 33-day pre-answer exit is rarely neutral. For CoB module makers, this case is a prompt to audit exposure.
Pre-answer dismissals often signal negotiation, not defeat
When a plaintiff dismisses before the defendant even answers, it typically suggests one of three things: a licensing deal was reached, settlement talks progressed, or the plaintiff is repositioning for a stronger filing. The public record here is silent, but companies holding similar CoB technology should treat this as a signal that US7238550B2 is being actively monetised.
Without-prejudice exit leaves the door open — audit your CoB portfolio now
No res judicata protection attaches to Swissbit or any other potential defendant. R&D and product teams building Chip-on-Board or embedded flash modules should run a freedom-to-operate analysis against US7238550B2 before this patent surfaces in a new filing. The cost of an FTO is a fraction of the cost of responding to a fresh complaint.
Helix v Swissbit — key questions answered
The action was dismissed without prejudice. Helix Microinnovations filed a notice of voluntary dismissal under Rule 41(a)(1)(A)(i) on 25 September 2024, before Swissbit NA had answered or moved for summary judgment. A without-prejudice dismissal carries no res judicata effect, meaning Helix retains the right to refile claims under US7238550B2 in a future action.
US7238550B2 is a US utility patent covering methods and apparatus for fabricating Chip-on-Board (CoB) modules. CoB is a semiconductor packaging technique where dies are mounted directly on a substrate, widely used in industrial flash storage, embedded computing, and compact memory hardware. The patent was filed under application number US10/371800.
The case closed 33 days after filing, which is consistent with a pre-suit settlement, a licensing agreement, or a strategic decision to refile. The public record does not disclose the specific reason. Because Swissbit had not yet answered, Helix was able to exit as of right under Rule 41(a)(1)(A)(i) without court approval or any merits adjudication.
No. A without-prejudice dismissal does not bar future claims. Swissbit NA — and any other company operating in the Chip-on-Board module space — remains potentially exposed to reassertion of US7238550B2 unless they have secured a license, covenant not to sue, or have successfully challenged the patent’s validity through inter partes review or other proceedings.
Yes. The dismissal without prejudice means no service-of-complaint clock was triggered that would limit an IPR petition under 35 U.S.C. § 315(b). Any party with standing may file an inter partes review petition at the USPTO challenging the validity of US7238550B2. If Helix refiles and serves a new complaint, the one-year IPR bar would begin running from that new service date.
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