Combe Inc. v. Kos Kos USA: Liability Won, Damages Lost to Procedural Default
Combe Incorporated secured a liability judgment against Kos Kos USA in January 2025 over US9474704B2, a patent covering gradual haircolor compositions — then forfeited the damages phase after missing three court-extended deadlines across 856 days of litigation in the Central District of California.
A liability win undone by procedural inaction on damages
Combe Incorporated, the consumer hair-care brand and holder of US9474704B2, filed suit against Kos Kos USA, LLC in the Central District of California on May 17, 2023, alleging infringement of its patent covering gradual haircolor compositions and methods of using the same. Represented by Venable LLP, Combe pursued an infringement action that resulted in a judgment on liability in its favour on January 16, 2025.
Despite prevailing on liability, Combe was unable to translate that victory into a damages award. The court deferred the quantum of damages pending additional evidence, but Combe’s own procedural missteps proved fatal: it failed to file a required application to reopen discovery by the original April 17, 2025 deadline, and then missed two further court-extended deadlines — August 29 and September 10, 2025 — before the court directed the Clerk to close the docket on September 19, 2025.
The resolution is notable because the plaintiff held a valid liability finding yet walked away without a damages determination. The public record does not reveal whether a settlement was reached privately — which could explain the deliberate non-filing — or whether the damages case was simply abandoned. The court expressly preserved the right to reopen on a showing of good cause, leaving the door ajar for future proceedings.
Filing to Case Terminated in 856 days
856 days — above the ~650-day median for C.D. California patent cases
Case closed after liability win: what the procedural failure means for both parties
Court-directed closure after repeated deadline non-compliance
Following a liability judgment for Combe, the court required plaintiff to file an application to reopen discovery on damages. After three missed deadlines — April 17, August 29, and September 10, 2025 — the court directed the Clerk to close the docket. The closure is administrative rather than a merits dismissal on damages, and the court explicitly preserved plaintiff’s right to seek reopening on a showing of good cause.
Procedural closureLiability win preserved — damages remain unquantified
Combe holds a live judgment on liability, which represents a meaningful legal asset. However, without a damages award, enforcement value is limited. The public record is silent on whether a private settlement has already compensated Combe — a plausible explanation for deliberate non-filing. The good-cause reopening avenue means the damages phase is suspended, not necessarily extinguished, though inaction strengthens Kos Kos’s practical position.
Liability intact, no damagesNo damages order — but liability finding remains on record
Kos Kos USA escapes a damages award for now, but the January 2025 liability finding is a matter of public record and is not vacated by the docket closure. Any future litigation by Combe — or a successor — could rely on that existing judgment as a starting point. Kos Kos would be well-advised to monitor the docket for any good-cause reopening application and to assess ongoing exposure under US9474704B2.
Liability judgment persistsIncomplete enforcement signals risk for haircolor IP holders
The case illustrates how procedural discipline is as important as substantive merit in patent enforcement. A patentee who wins on liability but cannot navigate post-judgment discovery procedures may realise no economic benefit. For competitors in the gradual haircolor and cosmetic formulation space, the unresolved damages phase limits the deterrent effect of Combe’s patent, at least in this proceeding. Monitoring for a reopening application is advisable.
Enforcement deterrence reducedFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Combe Incorporated | Individual | Consumer hair-care company — holder of US9474704B2 (gradual haircolor compositions)Search in Eureka ↗ |
| Defendant | Kos Kos USA, LLC | Company | Kos Kos USA, LLC — accused infringer of gradual haircolor composition patentSearch in Eureka ↗ |
| Plaintiff counsel | Alicia M. Sharon | Attorney | Counsel for Combe IncorporatedSearch in Eureka ↗ |
| Plaintiff counsel | Sarah S. Brooks | Attorney | Counsel for Combe IncorporatedSearch in Eureka ↗ |
| Plaintiff law firm | Venable LLP | Law Firm | Representing Combe IncorporatedSearch in Eureka ↗ |
| Defendant counsel | Ji Yoon Kim | Attorney | Counsel for Kos Kos USA, LLCSearch in Eureka ↗ |
| Defendant law firm | Lk Professional Law Group | Law Firm | Representing Kos Kos USA, LLCSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | California Central District CourtSearch in Eureka ↗ |
Official order — verbatim text
The January 2025 liability judgment confirmed infringement of US9474704B2 but left damages entirely open. The subsequent docket narrative is notable for what it reveals about plaintiff conduct: three successive missed deadlines suggest either a deliberate strategic withdrawal — consistent with an undisclosed settlement — or a breakdown in litigation management. The court’s language is measured; it does not dismiss the damages claim with prejudice, instead preserving a good-cause avenue, which is an unusual degree of judicial latitude that itself suggests the court recognised the procedural situation may have an underlying rationale not visible on the public docket.
US9474704B2 — Gradual Haircolor Compositions and Methods
US9474704B2 protects gradual haircolor compositions and the methods of using them — a technology category covering formulations that progressively deposit colour over multiple applications rather than delivering immediate, single-treatment results. The patent falls within the broader cosmetic and personal care formulation domain, a sector characterised by significant proprietary differentiation in ingredient selection, delivery mechanisms, and consumer safety profiles. Application number US14/992098 indicates a mid-2010s filing, situating the patent in a period of active consumer haircolor innovation.
For Combe — a company whose commercial identity is closely tied to branded haircolor products — US9474704B2 represents a core enforcement asset in a competitive market where gradual haircolor formulations command a distinct consumer segment. The liability finding against Kos Kos USA confirms that the patent’s claims are enforceable against at least one commercial competitor. Companies formulating or distributing gradual haircolor products in the US market should treat this patent as an active risk, particularly given that the underlying liability judgment has not been vacated and the patent remains in force.
Should you run an FTO against US9474704B2?
Any R&D team or product manager developing, reformulating, or commercialising gradual haircolor compositions in the United States should conduct a freedom-to-operate analysis against US9474704B2. The C.D. California liability judgment confirms the patent’s enforceability, and the docket closure does not extinguish Combe’s enforcement rights. This is directly relevant to cosmetic brands, private-label manufacturers, and ingredient suppliers whose products involve progressive colour deposition chemistry.
PatSnap Eureka’s FTO Search Agent can map the claim scope of US9474704B2 against your specific formulation parameters, identify design-around opportunities, and surface the full family of related Combe filings that may extend protection beyond this single patent. With the damages phase technically still open and the liability finding intact, the window for proactive FTO clearance is now — before any reopening application changes the litigation dynamic.
Run a freedom-to-operate analysis on US9474704B2 to assess your product’s exposure
Run FTO in Eureka →Similar haircolor and cosmetic formulation patent cases in C.D. California
Explore related patent infringement actions in the cosmetic and personal care formulation sector litigated in the Central District of California.
What this case signals for the cosmetic formulation IP landscape
A liability win without damages is a cautionary tale for patent holders in consumer personal care — procedural execution matters as much as legal merit.
Liability judgments have no commercial value without a damages award
Combe’s experience underscores that winning on infringement is only half the battle. Patent holders must maintain procedural discipline through the damages phase — including timely discovery applications — or risk forfeiting any monetary recovery despite a valid judgment on the merits.
Defendants should monitor dockets for good-cause reopening applications
The court’s explicit preservation of a reopening right means Kos Kos USA cannot treat this closure as final. IP counsel for the defendant should track the C.D. California docket and assess whether a private settlement has been reached, which would clarify the true risk posture under the existing liability finding.
Incorporated v Kos — key questions answered
Combe Incorporated sued Kos Kos USA, LLC in the Central District of California for infringement of US9474704B2 covering gradual haircolor compositions. The court entered judgment for Combe on liability in January 2025, but the case was closed in September 2025 after Combe missed three successive court-ordered deadlines to file a damages discovery application.
No. The docket closure is an administrative termination following plaintiff’s procedural non-compliance on the damages phase. The January 2025 liability judgment remains intact and US9474704B2 was not invalidated or narrowed by the closure. The court explicitly preserved Combe’s right to seek reopening on a showing of good cause.
US9474704B2, assigned to Combe Incorporated, covers gradual haircolor compositions and methods of using them. The patent protects formulations that progressively deposit colour over multiple applications, a distinct segment of the consumer haircolor market. Application number US14/992098 reflects a mid-2010s filing in the personal care chemistry domain.
The public record does not disclose the reason. Combe missed the original April 17, 2025 deadline and two subsequent court-extended deadlines in August and September 2025. One plausible interpretation — consistent with represented plaintiffs ceasing to pursue monetary relief — is that a private settlement was reached after the liability judgment, rendering further court proceedings unnecessary. However, this is not confirmed on the docket.
Yes. The court’s September 2025 closure order expressly stated that Combe may file an application to reopen the matter on the damages issues upon a showing of good cause. This preserves a formal pathway for Combe to pursue monetary relief, though the burden of demonstrating good cause for the prior missed deadlines would need to be addressed in any such application.
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