Knix Wear v. Emidia LLC: Four-Patent Absorbent Apparel Dispute Settles in 194 Days
Canadian intimate apparel brand Knix Wear filed suit against Emidia, LLC in the Southern District of New York, asserting four US patents covering absorbent pad technology central to period and leak-proof underwear. The case resolved by settlement with prejudice just 194 days after filing, suggesting a swift commercial resolution without adjudication on the merits.
Knix Wear’s four-patent absorbent-apparel enforcement ends in rapid settlement
On June 6, 2024, Knix Wear, Inc. filed a patent infringement action against Emidia, LLC in the United States District Court for the Southern District of New York (Case No. 1:24-cv-04338), presided over by Judge John G. Koeltl. Knix asserted four issued US patents — US10441479B2, US11701267B2, US11737931B2, and US10441480B2 — all directed to absorbent pad technology relevant to leak-proof intimate apparel, a fast-growing product category that includes period underwear and incontinence garments.
On December 17, 2024, Judge Koeltl entered an order reporting a settlement between the parties and discontinuing the matter with prejudice but without costs. The 45-day restoration window built into the order is a standard S.D.N.Y. mechanism allowing parties to reopen if the settlement agreement is not finalised; the court also offered to retain jurisdiction to enforce a settlement agreement if that agreement was submitted and so-ordered within the same period. All pending motions were dismissed as moot.
The 194-day resolution is notably swift for a four-patent infringement action in S.D.N.Y., suggesting the parties reached a commercial agreement — potentially a licensing arrangement or product modification — without significant claim construction or summary judgment proceedings. The specific financial terms, licensing scope, and any admissions remain confidential and are not reflected in the public record. Whether the court retained jurisdiction to enforce the settlement depends on whether the parties submitted the agreement within the 45-day window.
Filing to Case Settled in 194 days
194 days — faster than the typical S.D.N.Y. patent case average of 2–3 years to trial
Case settled with prejudice: what the order means for both parties
Dismissed with prejudice — Knix cannot re-file these claims
A dismissal with prejudice is a final adjudication on the merits for res judicata purposes. Knix Wear cannot re-file the same infringement claims against Emidia on these four patents for the same accused products. The 45-day restoration clause is a procedural safety valve — if settlement terms break down within that window, Knix may seek reinstatement; after that window closes, the case is permanently concluded.
Prejudice bar appliesKnix secures closure — likely on agreed commercial terms
A with-prejudice settlement at this early stage typically reflects that the patent holder achieved its primary commercial objective — whether a licensing fee, royalty arrangement, product withdrawal, or a design-around agreement. Knix Wear retains its four patents in full force; they have not been invalidated, and no adverse claim construction was entered. The patents remain available for enforcement against other parties.
Patents remain enforceableEmidia exits litigation quickly, merits never tested
Emidia avoided a potentially costly multi-year litigation without any public finding of infringement or validity. The with-prejudice dismissal without costs suggests Emidia did not bear Knix’s legal fees. However, the confidential settlement may include product restrictions or payment obligations not visible in the public record. Critically, Emidia did not secure a finding of invalidity, leaving the four asserted patents intact as competitive risks.
No public infringement findingFour live patents signal ongoing IP risk for absorbent apparel competitors
The swift settlement without invalidation preserves Knix Wear’s patent portfolio as an active enforcement tool. Other manufacturers in the period underwear and absorbent intimate apparel space — particularly those whose products reference Korean Patent KR100694187B1 or similar absorbent pad constructions — should regard these four US patents as live infringement risks. The willingness to litigate in S.D.N.Y. suggests Knix Wear pursues an active enforcement strategy.
Active enforcement postureFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Knix Wear, Inc. | Company | Intimate apparel brand and IP licensor — holder of US10441479B2 and three related absorbent pad patentsSearch in Eureka ↗ |
| Defendant | Emidia, LLC | Company | Emidia, LLC — intimate apparel supplier alleged to have infringed absorbent pad patentsSearch in Eureka ↗ |
| Plaintiff counsel | Shawn J. Kolitch. | Attorney | Counsel for Knix Wear, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Kolitch Romano Dascenzo Gates LLC | Law Firm | Representing Knix Wear, Inc.Search in Eureka ↗ |
| Defendant counsel | Thomas A. O’Rourke. | Attorney | Counsel for Emidia, LLCSearch in Eureka ↗ |
| Defendant law firm | O’Rourke IP Law P.L.L.C. | Law Firm | Representing Emidia, LLCSearch in Eureka ↗ |
| Presiding judge | Judge John G. Koeltl | Judge | New York Southern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The order’s phrasing — ‘discontinued with prejudice but without costs’ — is a standard S.D.N.Y. settlement closure mechanism. The with-prejudice designation bars Knix from re-asserting these exact claims against Emidia on the same accused products, providing finality. The explicit ‘without costs’ language means neither party bears the other’s attorneys’ fees from this proceeding. The 45-day restoration clause is procedural, not substantive — it merely preserves a limited re-opening right while the settlement is finalised. No merits ruling, invalidity finding, or claim construction was entered.
US10441479B2 — Absorbent Pad Technology for Intimate Apparel
The four asserted patents — US10441479B2, US11701267B2, US11737931B2, and US10441480B2 — cover technical constructions and configurations of absorbent pads designed for integration into intimate apparel such as underwear and incontinence garments. The application dates span multiple filing generations, suggesting a deliberate patent family strategy to capture iterative design improvements in a rapidly commercialising product category. These patents are rooted in the materials science and garment engineering intersection underlying period underwear technology.
The period and leak-proof underwear segment has grown significantly as a consumer category, attracting multiple entrants and substantial IP competition. Knix Wear’s decision to prosecute four distinct US patents across different application numbers — while also referencing Korean prior art — suggests a layered IP strategy designed to cover the core absorbent pad structure from multiple claim angles. For competitors, this multi-patent family creates a complex design-around challenge, as bypassing one patent does not guarantee clearance from the remaining three.
Should your team run an FTO against US10441479B2 and the Knix patent family?
Any company developing, sourcing, or commercialising absorbent intimate apparel — including period underwear, incontinence garments, or postpartum products — in the US market should consider a freedom-to-operate analysis against Knix Wear’s four-patent family. This is particularly relevant for brands using absorbent pad constructions similar to those described in KR100694187B1, as the complaint’s reference to this Korean patent suggests Knix has mapped related prior art extensively.
PatSnap Eureka’s FTO Search Agent can rapidly map claim scope across US10441479B2, US11701267B2, US11737931B2, and US10441480B2, identify design-around opportunities, and flag related patent family members globally. For R&D teams iterating on absorbent garment constructions, Eureka’s claim analysis tools can surface freedom-to-operate risk before product development reaches the commercialisation stage — reducing downstream litigation exposure.
Run a freedom-to-operate analysis on US10441479B2 to assess your product’s exposure
Run FTO in Eureka →Similar absorbent apparel patent infringement cases in US district courts
Explore related patent infringement cases involving absorbent pad and intimate apparel technology litigated in US federal district courts, including the Southern District of New York.
What this case signals for the absorbent apparel IP landscape
Four patents asserted, zero invalidated. Knix Wear’s rapid settlement reinforces the strength of its absorbent pad IP portfolio as a competitive moat.
Knix’s patent portfolio survived untested — and is stronger for it
No claim construction, no IPR petitions, and no invalidity findings emerged from this litigation. All four asserted patents — US10441479B2, US11701267B2, US11737931B2, US10441480B2 — remain in full force. Competitors operating in the absorbent intimate apparel space cannot rely on this case to challenge the patents’ validity.
Swift settlement suggests a licensing deal, not a product exit
A 194-day resolution with prejudice but no cost award is consistent with a structured licensing or royalty agreement rather than a forced product withdrawal. Businesses entering the period underwear market should factor potential licensing obligations into product development budgets and model IP risk early in commercialisation planning.
Knix v Emidia — key questions answered
Knix Wear asserted four US patents: US10441479B2, US11701267B2, US11737931B2, and US10441480B2. All four cover absorbent pad technology relevant to leak-proof and period-protection intimate apparel. The complaint also referenced Korean Patent KR100694187B1 as a related absorbent pad reference.
The case was resolved by settlement. On December 17, 2024, Judge John G. Koeltl entered an order discontinuing the matter with prejudice but without costs, following a report that the parties had reached a settlement. The financial terms and any licensing conditions are confidential and not reflected in the public record.
Dismissed with prejudice means Knix Wear is barred from re-filing the same infringement claims against Emidia on these patents for the same accused products — the dismissal has the effect of a final judgment. ‘Without costs’ means neither party is ordered to pay the other’s legal fees or court costs from this proceeding. The settlement terms themselves remain private.
Yes. The settlement did not result in any invalidity finding, adverse claim construction, or inter partes review. All four asserted patents — US10441479B2, US11701267B2, US11737931B2, and US10441480B2 — remain in full force and are available for enforcement against other parties in the intimate apparel and absorbent garment market.
The 45-day restoration clause is a standard Southern District of New York mechanism. It allows Knix Wear’s counsel to apply by letter to restore the case to the court’s calendar if the settlement falls through within that window. After 45 days, any application to reopen may be denied on timeliness grounds alone. The order also gave parties 45 days to submit the settlement agreement for court so-ordering if they wished the court to retain jurisdiction to enforce it.
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