Nike v. Lululemon USA: Federal Circuit Appeal Voluntarily Dismissed After 372 Days
Nike brought an infringement appeal against Lululemon USA Inc. at the Court of Appeals for the Federal Circuit, asserting three patents covering textile footwear uppers and knitted components with inlaid tensile elements. The proceeding was dismissed under Fed. R. App. P. 42(b) by agreement of the parties, with each side bearing its own costs — ending the appeal without a merits ruling after 372 days.
Nike's Federal Circuit footwear patent appeal ends without a verdict
Nike filed appeal No. 25-1709 at the Court of Appeals for the Federal Circuit on 29 April 2025, asserting infringement of three patents: US9735046B2 (article of footwear having a textile upper), US8266749B2 (article of footwear incorporating a knitted component with inlaid tensile elements and method of assembly), and US9375046B2 (article of footwear having a textile upper). The defendant was Lululemon USA Inc., represented by Morgan, Lewis & Bockius LLP, with Nike represented by Arnold & Porter Kaye Scholer LLP.
The recorded basis of termination is voluntary dismissal. The docket order states that the proceeding is DISMISSED under Fed. R. App. P. 42(b) by agreement of the parties, with each side bearing its own costs. The case closed on 6 May 2026. No merits determination was reached at the appellate level.
The appeal ran for 372 days before the parties agreed to dismiss it — a relatively short lifespan for Federal Circuit infringement proceedings. What drove the parties to jointly seek dismissal at this stage is not disclosed in the available public record, nor are any underlying terms or arrangements between the parties. The specific terms, if any, are not disclosed in the available record.
See Complete Case & Patent Analysis →Filing to Voluntary dismissal in 372 days
372 days from filing to voluntary dismissal at the Federal Circuit
US9735046B2, US8266749B2 & US9375046B2 — knit textile footwear upper patents
Any footwear brand, contract manufacturer, or materials supplier working with knit, woven, or textile upper constructions — particularly those incorporating inlaid tensile or strand elements — should assess freedom to operate against these three Nike patents. The Federal Circuit dismissal does not constitute a clearance. The patents remain issued and enforceable.
Official order — verbatim text
The docket order records a mutual agreement to dismiss under Fed. R. App. P. 42(b), with each side bearing its own costs. No substantive ruling on infringement, validity, or claim scope was issued by the Federal Circuit. The cost-neutrality of the order is consistent with a jointly negotiated exit, though the specific terms of any underlying arrangement are not disclosed in the available record.
Voluntarily dismissed: what the agreed dismissal means for both parties
Fed. R. App. P. 42(b) voluntary dismissal at the Federal Circuit
Under Fed. R. App. P. 42(b), an appeal may be dismissed on a stipulation signed by all parties or on the appellant's motion. The docket order records that the parties agreed to dismiss and that each side bears its own costs. No merits ruling was issued, meaning the Federal Circuit did not adjudicate the underlying infringement or validity questions.
No merits rulingNike's appeal ends without appellate vindication — or defeat
Nike, as appellant, initiated the Federal Circuit proceeding but agreed to its dismissal before any ruling on the merits. The three asserted patents — covering textile uppers and knitted components with inlaid tensile elements — remain in force but received no appellate adjudication. Whether any underlying arrangements were reached is not disclosed in the available record.
Patents remain in forceLululemon exits the appeal without a finding of infringement or non-infringement
Lululemon USA Inc. faces no appellate judgment of infringement. Because the dismissal was agreed by the parties without a merits ruling, no precedent is set regarding the asserted patents and Lululemon's products. The absence of a cost award suggests a clean exit at the appellate level, though the specific terms of any agreement between the parties are not disclosed in the available record.
No infringement findingFootwear knit-upper IP landscape remains unresolved by this appeal
The voluntary dismissal leaves the validity and enforceability of Nike's knitted footwear upper patents unaddressed by the Federal Circuit. Competitors and product teams working in textile and knit-construction footwear should note that the asserted patents — US9735046B2, US8266749B2, and US9375046B2 — retain their issued status. The appellate record does not clarify claim scope or enforceability limits.
Patent scope unresolvedFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Nike | Individual | /Search in Eureka ↗ |
| Defendant | LULULEMON USA INC. | Company | /Search in Eureka ↗ |
| Plaintiff counsel | Michael Joseph Harris | Attorney | Counsel for NikeSearch in Eureka ↗ |
| Plaintiff law firm | Arnold & Porter Kaye Scholer LLP | Law Firm | Representing NikeSearch in Eureka ↗ |
| Defendant counsel | Ali S. Razai | Attorney | Counsel for LULULEMON USA INC.Search in Eureka ↗ |
| Defendant law firm | Morgan, Lewis & Bockius, LLP | Law Firm | Representing LULULEMON USA INC.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Court of Appeals for the Federal CircuitSearch in Eureka ↗ |
R&D signals in the knit footwear and textile upper patent space
Forward-looking patent and R&D intelligence derived from Nike v. Lululemon USA — signals for teams developing knit-construction and textile upper footwear.
Nike's knit-upper filing activity beyond the three asserted patents
US9735046B2, US8266749B2, and US9375046B2 are part of a broader Nike patent estate covering knit construction, tensile element integration, and textile upper engineering. Monitoring Nike's continuation filings and new applications in this family can reveal where the portfolio is expanding and which claim types Nike is reinforcing for future enforcement.
Nike knit-upper portfolioFiling trends in knitted component and inlaid tensile element footwear
The knit-upper footwear segment has attracted substantial patent activity from multiple global competitors since Nike's early Flyknit filings. Mapping publication trends in knitted footwear uppers, inlaid tensile strand construction, and automated knitting methods can reveal where the technology frontier is moving and where white space exists for next-generation designs.
Knit footwear filing trendsLululemon's patent position in footwear construction and materials
As Lululemon expands its footwear line, its own patent filings in upper construction, materials, and sole technology indicate how it is building IP defensibility in a segment historically dominated by Nike and Adidas. Analysing Lululemon's filing activity can surface both competitive intelligence and potential cross-licensing leverage.
Lululemon footwear IPAdjacent R&D opportunities near inlaid tensile knit upper construction
The claim scope of the asserted Nike patents centres on specific knit construction geometries and tensile element inlaying methods. Adjacent areas — including alternative upper-attachment mechanisms, novel knit yarn compositions, or hybrid woven-knit architectures — may represent lower-density IP zones where new entrants or incumbents can develop protectable differentiation.
Knit footwear white spaceSimilar Federal Circuit footwear and textile patent infringement appeals
Browse Federal Circuit appeals in footwear and textile upper patent disputes — cases comparable to Nike v. Lululemon USA Inc. in technology domain and appellate posture.
What this case signals for the knit footwear IP landscape
A Federal Circuit voluntary dismissal in a multi-patent footwear dispute leaves key enforceability questions open for the entire sector.
Nike's knit footwear patents remain active enforcement assets
The Federal Circuit dismissal does not diminish the legal standing of US9735046B2, US8266749B2, or US9375046B2. Nike retains the ability to assert these patents in new or parallel proceedings. Product teams in knit-construction footwear should treat these as live enforcement risks and monitor Nike's litigation activity accordingly.
No-merits dismissal preserves Lululemon's freedom to operate — for now
Because the appeal was dismissed without a merits ruling, Lululemon received no binding determination of non-infringement. This outcome is procedurally neutral but does not resolve the underlying IP question. Companies in adjacent footwear segments should not treat this dismissal as a cleared path around Nike's textile upper patent claims.
Nike v LULULEMON — key questions answered
The appeal was voluntarily dismissed under Fed. R. App. P. 42(b) by agreement of the parties. The Federal Circuit issued no merits ruling on infringement or validity. Each side was ordered to bear its own costs. The case closed on 6 May 2026, approximately 372 days after filing.
Nike asserted three patents: US9735046B2 (article of footwear having a textile upper), US8266749B2 (article of footwear incorporating a knitted component with inlaid tensile elements and method of assembly), and US9375046B2 (article of footwear having a textile upper). All three remain issued and enforceable following the voluntary dismissal.
No. A voluntary dismissal under Fed. R. App. P. 42(b) carries no merits determination. The Federal Circuit did not rule on validity or infringement. US9735046B2, US8266749B2, and US9375046B2 remain in force. The dismissal cannot be relied upon as a clearance or freedom-to-operate determination.
Fed. R. App. P. 42(b) allows parties to stipulate to dismiss an appeal without a merits ruling. The lower court record and any prior decisions below remain in place, but the Federal Circuit makes no new pronouncement on claim scope, validity, or infringement. The cost-neutral order in this case indicates no cost award was made to either party.
Nike was represented by Arnold & Porter Kaye Scholer LLP, with Michael Joseph Harris listed as plaintiff's agent. Lululemon USA Inc. was represented by Morgan, Lewis & Bockius LLP, with Ali S. Razai listed as defendant's agent.
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