RBW Studio v. Weinstein AU: Chandelier Design Patent Case Dismissed With Prejudice
RBW Studio LLC asserted two design patents covering a chandelier light fixture and bulb against an architecture firm, hospitality operator, and real estate developer in Washington. The parties reached a stipulated dismissal with prejudice after 280 days, with each side bearing its own legal costs — suggesting a negotiated resolution outside the public record.
Design patent clash over chandelier aesthetics ends in stipulated exit
RBW Studio LLC, a lighting design company, filed suit on 31 May 2024 in the U.S. District Court for the Western District of Washington (Case No. 2:24-cv-00763) before Judge John H. Chun. The complaint alleged infringement of two design patents — USD1004180S (application no. US29/754064) and USD851806S (application no. US29/655083) — both covering ornamental designs for a chandelier light fixture and bulb. Defendants included architecture firm Weinstein AU PLLC, hospitality management company Columbia Hospitality Inc, real estate developer Lake Union Partners Seattle LLC, contractor Eitel Associates LLC, and The Rushing Company LLC.
The case closed on 7 March 2025 via a stipulated dismissal with prejudice under Fed. R. Civ. P. 41(a)(1)(A)(ii), signed by counsel for RBW Studio, Eitel Associates, Columbia Hospitality, and Lake Union Partners. Dismissal with prejudice means RBW Studio cannot refile the same claims against these defendants. Critically, the stipulation specified that each party bears its own costs and attorneys’ fees, which is a standard marker of a negotiated resolution and suggests neither side extracted a formal damages award from the other.
At 280 days, the case resolved well before any trial date would likely have been set, consistent with pre-trial settlement dynamics. The multi-defendant structure — spanning an architecture firm, a hospitality operator, and a real estate developer — suggests the alleged infringement was tied to a specific project or installation rather than mass manufacture. The absence of any public settlement terms, combined with the with-prejudice dismissal, leaves the commercial outcome opaque; whether a licensing arrangement, design change, or simple walk-away drove the resolution is not determinable from the public record.
Filing to Voluntary dismissal in 280 days
280 days — resolved faster than the U.S. district court design patent median of ~24 months
Stipulated dismissal with prejudice: what the exit means for both parties
Rule 41(a)(1)(A)(ii): stipulated dismissal explained
A dismissal under Fed. R. Civ. P. 41(a)(1)(A)(ii) requires a signed stipulation from all parties who have appeared. ‘With prejudice’ means the plaintiff permanently relinquishes these specific claims against these defendants — the case cannot be refiled. This mechanism is the standard vehicle for court-approved settlements where parties want finality without a judicial merits ruling.
Permanent bar on refilingRBW Studio closes the door — and forfeits the right to return
By agreeing to dismissal with prejudice, RBW Studio secured whatever commercial outcome was negotiated privately, but permanently surrendered the right to relitigate these design patent claims against the same defendants. The patents themselves remain valid and enforceable against third parties. The ‘own costs’ term suggests RBW Studio did not extract a fee award, which is consistent with a compromise resolution rather than a clear plaintiff win.
Patents survive; claims closedDefendants exit with finality but no public exoneration
The defendants — including Weinstein AU, Columbia Hospitality, and Lake Union Partners — obtained certainty that RBW Studio cannot revive these specific claims. However, dismissal with prejudice carries no merits finding: there is no judicial declaration of non-infringement or invalidity. Defendants received no cost reimbursement, suggesting the exit was balanced rather than a defendant-side victory on the merits.
No merits ruling; claims barredDesign patents in hospitality fit-outs: elevated enforcement risk
This case signals that lighting design companies are willing to pursue design patent claims across entire project supply chains — targeting architects, developers, and operators alongside direct product users. Firms specifying or installing decorative lighting in commercial hospitality projects should verify fixture provenance. USD1004180S and USD851806S remain active, and RBW Studio retains full enforcement rights against other parties.
Supply-chain enforcement riskFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | RBW Studio LLC | Company | Lighting design company — holder of USD1004180S and USD851806S (chandelier designs)Search in Eureka ↗ |
| Defendant | Weinstein AU PLLC | Individual | Architecture firm, hospitality operator, real estate developer, and contractors in SeattleSearch in Eureka ↗ |
| Co-Defendant | Columbia Hospitality Inc | Company | Search in Eureka ↗ |
| Co-Defendant | Eitel Associates LLC | Company | Search in Eureka ↗ |
| Co-Defendant | Lake Union Partners Seattle LLC | Company | Search in Eureka ↗ |
| Co-Defendant | The Rushing Company LLC | Company | Search in Eureka ↗ |
| Plaintiff counsel | John D. Denkenberger | Attorney | Counsel for RBW Studio LLCSearch in Eureka ↗ |
| Plaintiff counsel | John E. Whitaker | Attorney | Counsel for RBW Studio LLCSearch in Eureka ↗ |
| Plaintiff counsel | Perry Saidman | Attorney | Counsel for RBW Studio LLCSearch in Eureka ↗ |
| Plaintiff law firm | Christensen, O’Connor, Johnson, Kindness PLLC | Law Firm | Representing RBW Studio LLCSearch in Eureka ↗ |
| Plaintiff law firm | SAIDMAN DESIGN LAW GROUP LLC | Law Firm | Representing RBW Studio LLCSearch in Eureka ↗ |
| Defendant counsel | Frank Stuart Harrison | Attorney | Counsel for Weinstein AU PLLCSearch in Eureka ↗ |
| Defendant law firm | PIERSON FERDINAND | Law Firm | Representing Weinstein AU PLLCSearch in Eureka ↗ |
| Presiding judge | Judge John H. Chun | Judge | Washington Western District CourtSearch in Eureka ↗ |
Official order — verbatim text
The stipulation is signed by counsel for RBW Studio, Eitel Associates, Columbia Hospitality, and Lake Union Partners — notably, The Rushing Company LLC does not appear as a signatory in the public record, which may reflect a separate resolution or procedural posture. The ‘each party bears its own costs’ clause is commercially significant: it rules out a fee-shifting outcome under 35 U.S.C. § 285 and is consistent with a negotiated compromise. No merits finding was made on infringement, validity, or claim scope.
USD1004180S & USD851806S — Chandelier Light Fixture and Bulb Designs
USD1004180S (application US29/754064) and USD851806S (application US29/655083) are U.S. design patents protecting the ornamental appearance of chandelier light fixtures and bulb forms. Design patents under 35 U.S.C. § 171 cover the non-functional, aesthetic aspects of a manufactured article — meaning the protected subject matter is the visual impression created by the fixture’s shape, configuration, and surface ornamentation, not its lighting or mechanical function. RBW Studio is a New York-based architectural lighting brand known for distinctive geometric and sculptural fixture designs.
Design patents for decorative lighting carry significant commercial weight in the contract and hospitality furnishings market, where aesthetic differentiation is a primary competitive factor. Because the infringement standard asks whether an ‘ordinary observer’ would find the accused design substantially similar to the claimed design, enforcement reach can extend to visually similar products even without direct copying. For competing lighting manufacturers, hospitality specifiers, and interior architects, these two patents define a zone of visual exclusivity that warrants assessment before specifying chandelier fixtures with similar silhouettes in commercial projects.
Should your project or product be cleared against USD1004180S and USD851806S?
Any manufacturer producing chandelier light fixtures with design similarities to RBW Studio’s patented forms, any architect or interior designer specifying such fixtures for commercial hospitality or mixed-use projects, and any developer or operator procuring decorative lighting for high-visibility installations should treat these patents as live enforcement risks. This case demonstrates that RBW Studio is prepared to name the entire project chain — not just direct competitors — as defendants.
PatSnap Eureka’s FTO Search Agent can map the visual claim scope of USD1004180S and USD851806S against your product designs or specified fixtures, identify prior art that may constrain RBW Studio’s enforcement position, and surface any continuation or related applications in RBW Studio’s design patent portfolio. Running a targeted FTO before specification sign-off is materially cheaper than post-suit resolution.
Run a freedom-to-operate analysis on USD1004180S to assess your product’s exposure
Run FTO in Eureka →Similar design patent infringement cases: decorative lighting and fixtures
Explore comparable design patent infringement actions involving decorative lighting fixtures filed in U.S. district courts, including the Western District of Washington.
What this case signals for the decorative lighting IP landscape
Design patent enforcement in commercial interiors is broadening — architects and hospitality operators are now litigation targets alongside manufacturers.
Multi-party design patent suits target whole project ecosystems
RBW Studio named five defendants spanning design, development, and operations. This supply-chain enforcement model — common in design patent cases — creates pressure on every party that specified, procured, or installed a fixture. Architects and hospitality operators should treat lighting specification decisions as carrying IP liability exposure, not just procurement risk.
With-prejudice dismissal protects defendants but leaves patents intact
The stipulation bars re-litigation against these specific defendants but does nothing to invalidate USD1004180S or USD851806S. Any competitor, specifier, or installer not party to this case remains fully exposed. RBW Studio’s willingness to litigate suggests active patent enforcement remains part of its commercial strategy.
RBW v Weinstein — key questions answered
RBW Studio asserted two design patents: USD1004180S (application US29/754064) and USD851806S (application US29/655083), both covering the ornamental design of a chandelier light fixture and bulb. The case was filed in the Western District of Washington on 31 May 2024.
The case was dismissed via a stipulated agreement signed by counsel for all principal parties under Fed. R. Civ. P. 41(a)(1)(A)(ii). Dismissal with prejudice permanently bars RBW Studio from refiling the same design patent claims against these defendants. The public record does not disclose settlement terms; the ‘own costs’ provision suggests a negotiated resolution rather than a litigated outcome.
No. A dismissal with prejudice under Rule 41 carries no merits finding on patent validity or infringement. USD1004180S and USD851806S remain valid and enforceable against third parties. Only the specific claims against the named defendants in this action are permanently closed.
Design patent enforcement actions frequently target all parties in the procurement and installation chain under theories of direct and contributory infringement. Naming Weinstein AU (architecture), Columbia Hospitality (operator), and Lake Union Partners (developer) alongside contractors reflects a litigation strategy that maximises settlement leverage by creating liability exposure at every level of the project ecosystem.
In patent litigation, a prevailing party may seek attorneys’ fees in exceptional cases under 35 U.S.C. § 285. When a stipulation specifies that each party bears its own costs, it forecloses any fee-shifting claim and typically indicates a compromise resolution. It does not indicate who had the stronger legal position — it simply reflects the commercial terms the parties agreed to in order to exit the litigation.
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