Liberty Hardware v. Contractors Wardrobe: Six-Patent Shower Door Dispute Ends in Settlement
Liberty Hardware Mfg. Corp. asserted six patents spanning shower door packaging assemblies, glass pane packaging, and guide assemblies against rival Contractors Wardrobe, Inc. in California’s Central District. The parties reached an agreement in principle and the case was dismissed with prejudice after 413 days — suggesting a negotiated resolution that forecloses refiling.
Six-patent shower door packaging dispute resolved by settlement in 13 months
On 19 December 2022, Liberty Hardware Mfg. Corp. filed suit against Contractors Wardrobe, Inc. in the U.S. District Court for the Central District of California (Case No. 2:22-cv-09210), asserting infringement of six patents covering door packaging, shower door glass pane packaging assemblies, and shower door guide assemblies. The six patents asserted — US10024093B2, USD729055S, US9676543B2, US10280666B2, USD739726S, and US9743810B2 — span both utility and design protection, reflecting a broad IP perimeter around Liberty’s packaging and hardware systems.
The case closed on 5 February 2024 when the parties notified the court they had reached an agreement in principle. Pursuant to Federal Rule of Civil Procedure 41(a)(1)(A)(ii), the action was dismissed with prejudice — meaning Liberty Hardware is contractually and legally barred from reasserting the same claims against Contractors Wardrobe. The dismissal with prejudice is the hallmark of a negotiated resolution in which both parties accepted defined terms rather than proceeding to trial.
At 413 days from filing to closure, the timeline suggests the parties moved toward settlement before reaching the most cost-intensive phases of discovery or claim construction. What remains undisclosed from the public record includes the financial terms of any royalty or licensing arrangement, whether Contractors Wardrobe agreed to design-around obligations, and whether any cross-licensing of Contractors Wardrobe’s IP was part of the settlement structure. The involvement of counter-claims by Contractors Wardrobe indicates the dispute had genuine bilateral contention before resolution.
Filing to dismissal in 413 days
413 days — faster than the typical multi-patent district court infringement case
Dismissed with prejudice following agreement in principle between the parties
Rule 41(a)(1)(A)(ii) dismissal — what it means
A stipulated dismissal under FRCP 41(a)(1)(A)(ii) requires agreement from all parties who have appeared and answered. Here, both Liberty Hardware and counter-claimant Contractors Wardrobe consented. The court does not need to approve the terms — it simply receives the stipulation. This mechanism is the standard vehicle for implementing a private settlement in U.S. federal patent litigation.
Bilateral consent dismissalWith prejudice — Liberty cannot refile these claims
Dismissal with prejudice operates as a final adjudication on the merits. Liberty Hardware is permanently barred from re-litigating the same infringement claims against Contractors Wardrobe on the six asserted patents. This is a materially stronger concession than dismissal without prejudice and strongly suggests Contractors Wardrobe secured real value — whether through a licence, design-around commitment, or other terms — in exchange for accepting finality.
Bars refiling — res judicata effectContractors Wardrobe filed counter-claims — a bilateral dispute
The verdict notice identifies Contractors Wardrobe as both Defendant and Counter-Claimant, and Liberty Hardware as both Plaintiff and Cross-Defendant. This bilateral posture indicates Contractors Wardrobe mounted an affirmative challenge — likely invalidity, non-infringement, or its own IP claims — rather than defending passively. The resolution of counter-claims within the same settlement adds complexity and suggests a multi-issue negotiated outcome.
Counter-claims resolvedSix patents: utility and design IP stacked together
Liberty asserted four utility patents (US10024093B2, US9676543B2, US10280666B2, US9743810B2) alongside two design patents (USD729055S, USD739726S). Stacking utility and design patents creates overlapping claim coverage — utility patents protect functional features while design patents protect ornamental appearance. This dual-track approach is a deliberate enforcement strategy that raises the cost and complexity of defence, and may itself have accelerated settlement.
Utility + design stack strategyFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Liberty Hardware Mfg, Corp. | Company | Shower door hardware and packaging manufacturer — holder of US10024093B2 and five related patentsSearch in Eureka ↗ |
| Defendant | Contractors Wardrobe, Inc. | Company | Contractors Wardrobe, Inc. — manufacturer and distributor of shower doors and enclosure productsSearch in Eureka ↗ |
| Plaintiff counsel | David P. Utykanski | Attorney | Counsel for Liberty Hardware Mfg, Corp.Search in Eureka ↗ |
| Plaintiff counsel | Franklin D. Kang | Attorney | Counsel for Liberty Hardware Mfg, Corp.Search in Eureka ↗ |
| Plaintiff counsel | George D. Moustakas | Attorney | Counsel for Liberty Hardware Mfg, Corp.Search in Eureka ↗ |
| Plaintiff counsel | Michael P. Kella | Attorney | Counsel for Liberty Hardware Mfg, Corp.Search in Eureka ↗ |
| Defendant counsel | Brian M. Wheeler | Attorney | Counsel for Contractors Wardrobe, Inc.Search in Eureka ↗ |
| Defendant counsel | Jon Ustundag | Attorney | Counsel for Contractors Wardrobe, Inc.Search in Eureka ↗ |
| Defendant counsel | Joseph K. Lee | Attorney | Counsel for Contractors Wardrobe, Inc.Search in Eureka ↗ |
| Defendant counsel | Sean Anderson | Attorney | Counsel for Contractors Wardrobe, Inc.Search in Eureka ↗ |
| Presiding judge | Judge / | Chief Judge | California Central District Court — Chief JudgeSearch in Eureka ↗ |
Stipulation of dismissal — official text
The joint notice confirms a private settlement reached before trial, with the parties expressly invoking FRCP 41(a)(1)(A)(ii) — the stipulated dismissal route requiring both sides’ consent. The with-prejudice designation is legally significant: it extinguishes Liberty’s right to re-assert these six patents against Contractors Wardrobe in any future action. The phased language — ‘agreement in principle’ followed by a long-form agreement — is standard settlement drafting practice and does not imply the terms were incomplete or disputed at the time of filing. Financial terms, licence scope, and any design-around obligations remain confidential.
US10024093B2 — Shower Door Packaging and Guide Assembly Patents
The six patents asserted in this case collectively define Liberty Hardware’s IP perimeter around shower door packaging and installation hardware. Four utility patents — US10024093B2 (filed as US15/668033), US9676543B2 (US14/167235), US10280666B2 (US16/018505), and US9743810B2 (US14/814921) — protect functional aspects of door packaging assemblies and guide systems. Two design patents — USD729055S and USD739726S, both filed under the US29/480728 and US29/480731 application numbers respectively — protect the ornamental appearance of shower door components. Together, they cover both how the products work and how they look.
This portfolio configuration — stacking utility and design patents across the same product category — is strategically significant for the shower enclosure sector. Utility claims create barriers to functional copying; design claims create barriers to visual imitation and carry disgorgement-of-profits remedies. Any competitor developing shower door packaging or guide assemblies that overlap with Liberty’s claimed features faces compounded litigation risk. The successful enforcement of this portfolio against Contractors Wardrobe, a direct market participant, signals that Liberty is willing to litigate and capable of resolving disputes on favourable terms.
Should your team run an FTO against Liberty Hardware’s shower door patents?
If your company designs, manufactures, or sources shower door packaging assemblies, glass pane packaging systems, or door guide assemblies, the six patents asserted in this case represent a concrete clearance risk. Liberty Hardware has demonstrated a willingness to enforce — filing a six-patent suit and securing a with-prejudice dismissal that typically accompanies a licensing outcome. R&D teams developing products in this category should conduct FTO screening against US10024093B2, US9676543B2, US10280666B2, and US9743810B2 for functional features, and against USD729055S and USD739726S for visual design elements, before committing to production tooling.
PatSnap Eureka’s FTO Search Agent can map your product’s technical features against the independent claims of each Liberty Hardware utility patent and flag design patent similarity for ornamental elements. Claim-level monitoring alerts you when continuation or divisional applications publish in the same family — critical given that US10024093B2 and US10280666B2 share application series that may have spawned related pending claims. Set up a portfolio watch on Liberty Hardware’s assignee record to track new filings in this product space before they issue.
Run a freedom-to-operate analysis on US10024093B2 to assess your product’s exposure
Run FTO in Eureka →Similar shower door and hardware packaging patent cases in U.S. district courts
PatSnap Eureka tracks related litigation across truck body equipment, vehicle accessories, and comparable infringement actions in the Georgia district system.
What this case signals for the shower door and hardware packaging IP landscape
A six-patent assertion combining utility and design rights signals a maturing, actively enforced IP position in shower door hardware and packaging.
Liberty Hardware is an active enforcer — its patent portfolio warrants monitoring
Asserting six patents in a single action, combining utility and design rights, reflects a deliberate enforcement posture rather than opportunistic litigation. Competitors in shower door hardware, packaging assemblies, and guide systems should treat Liberty’s patent portfolio as an active risk. New product lines in these categories should be reviewed against Liberty’s granted claims before market entry.
Settlement with prejudice rarely signals defendant victory — licences are the likely outcome
When a plaintiff agrees to dismiss with prejudice, it typically reflects a satisfactory resolution — commonly a royalty-bearing licence or a covenant not to sue in exchange for payment or design-around commitments. Competitors of Contractors Wardrobe should not assume the underlying IP risk has been neutralised — Liberty retains all six patents for assertion against other market participants.
Liberty v Contractors — key questions answered
Liberty Hardware asserted six patents: utility patents US10024093B2, US9676543B2, US10280666B2, and US9743810B2, covering shower door packaging assemblies and guide systems, plus two design patents USD729055S and USD739726S covering ornamental aspects of shower door components. Products at issue included door packaging, shower door glass pane packaging assemblies, and shower door guide assemblies.
The case was resolved by a negotiated settlement and dismissed with prejudice under FRCP 41(a)(1)(A)(ii) on 5 February 2024, approximately 413 days after filing. A with-prejudice dismissal bars Liberty Hardware from reasserting the same claims against Contractors Wardrobe. Financial terms of the settlement remain confidential and were not disclosed in public court filings.
Dismissal with prejudice means Liberty Hardware permanently relinquished the right to sue Contractors Wardrobe again on the same six patents for the same alleged conduct. However, Liberty retains full ownership of all six patents and may assert them against other parties. The dismissal has no effect on the validity or enforceability of the patents against the broader market.
The public record identifies Contractors Wardrobe as Counter-Claimant and Liberty Hardware as Cross-Defendant, indicating Contractors Wardrobe raised affirmative claims — likely invalidity, unenforceability, or non-infringement defences framed as declaratory claims. The precise nature of the counter-claims is not detailed in the available public filings, but their existence suggests a substantive bilateral dispute that was ultimately resolved holistically in the settlement.
Design patent infringement in the U.S. can expose a defendant to disgorgement of total profits from an infringing article — a remedy not available under utility patent law. For shower door manufacturers, this means products with ornamental features substantially similar to USD729055S or USD739726S carry heightened financial exposure beyond reasonable royalty damages. An FTO analysis covering the visual design elements of Liberty’s design patents is advisable before launching competing shower door products.
PatSnap Eureka searches patents and litigation data to answer instantly.