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Lexington Luminance v. Wayfair – LED Patent Consent Judgment | PatSnap
Patent Litigation

Lexington Luminance v. Wayfair: Consent Judgment in LED Patent Dispute

Lexington Luminance LLC asserted US6936851B2 — a semiconductor light-emitting device patent — against Wayfair, Inc. in the Western District of Texas. The case resolved by consent judgment in 228 days, with each party bearing its own costs and attorneys' fees.

Resolution time
228days
228 days — resolved well under the median time-to-trial for W.D. Texas patent cases
Patents asserted
1
US6936851B2 — semiconductor light-emitting device and manufacturing method
Outcome
Consent Judgment
Agreed by the parties, entered by the court; binding and final resolution of all claims
Cost ruling
Each Party Pays
Each party to bear its own costs, expenses, and attorneys' fees per the stipulation
Published by PatSnap Insights Team · Verified by PatSnap Eureka Data
Case overview

LED patent assertion against Wayfair reaches agreed resolution in under eight months

On 29 September 2022, Lexington Luminance LLC filed suit against Wayfair, Inc. in the Western District of Texas (Judge Alan D. Albright) asserting infringement of US6936851B2, which covers a semiconductor light-emitting device and method for manufacturing the same. Wayfair — an e-commerce platform known for home goods — was targeted in connection with products falling within the patent's semiconductor LED claims.

The recorded basis of termination is Consent Judgment. The docket order states that, pursuant to an agreement by the parties and Federal Rule of Civil Procedure 41(a)(1)(A)(ii), Lexington Luminance and Wayfair stipulated to dismissal of all claims and counterclaims with prejudice, with each party bearing its own costs, expenses, and attorneys' fees. The specific terms underlying the parties' agreement are not disclosed in the available record.

The case closed on 15 May 2023 — just 228 days after filing — suggesting early resolution without extensive merits litigation. What drove the parties to agree at this stage, and whether any commercial terms accompanied the resolution, is not reflected in the public record.

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Case at a glance
DefendantWayfair, Inc.
CourtTexas Western District Court
JudgeAlan D Albright
FiledSeptember 29, 2022
ClosedMay 15, 2023
Duration228 days
OutcomeConsent Judgment
Verdict causeInfringement Action
BasisConsent Judgment
Prior Art Intelligence
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Case timeline

Filing to Consent Judgment in 228 days

228 days — resolved well under the median time-to-trial for W.D. Texas patent cases

Case timeline: Complaint filed SEP 29 2022 — 228 days total Horizontal timeline showing the three key events in Lexington Luminance, LLC v Wayfair, Inc. from filing to resolution. Source: PACER, Texas Western District Court. SEP 29 2022 Complaint filed Pre-trial proceedings MAY 15 2023 Consent Judgment 228 DAYS TOTAL
Patent at issue

US6936851B2 — Semiconductor Light-Emitting Device and Manufacturing Method

Publication No.US6936851B2
Application No.US10/394686
Patent details
ProductSemiconductor light-emitting device and method for manufacturing the same
Cited in actionSeptember 29, 2022
Technical brief · sourced from PatSnap patent database
US6936851B2Primary patent
Patent figurePatent figure
Technology summary
The use of a textured substrate with smooth trenches and a chirped mask design addresses the challenge of threading dislocations in semiconductor devices, reducing defect density and enabling efficient, large-area fabrication with controlled light emission in lattice-mismatched systems.
Representative claim (1 of 2 independent)
1. A semiconductor light-emitting device comprising: a substrate; a textured district defined on the surface, of said substrate comprising a plurality of etched trenches having a sloped etching profile with a smooth rotation of micro-facets without a prescribed angle of inclination; a first layer disposed on said textured district; comprising a plurality of inclined lower portions so as to guide the extended lattice defects away from propagating into the active layer, said first layer and said substrate form a lattice-mismatched misfit system, said substrate is selected from the group comprising group III-V, grou…
Technical background
BACKGROUND OF THE INVENTION 1. Field of Invention The present invention relates generally to the fabrication of semiconductor devices such as light-emitting devices in misfit systems. In particular, the lattice defects are guided to and contained in designated locations defined by textured districts on the substrate surface. As a result, the free propagation of extended defects through the active region is restricted and the overall defect density of the system is reduced. 2. Description of Prior Art Lattice-mismat…
Patent family
4 family members across 2 jurisdictions (US, TW)
PatSnap Eureka · FTO Search Agent
Should you run an FTO analysis against US6936851B2?

Any company manufacturing, importing, distributing, or retailing products incorporating semiconductor light-emitting devices should assess its exposure to US6936851B2. This case confirms that assertion is not limited to component manufacturers — e-commerce platforms and product resellers have been named. If your product portfolio includes LED-based lighting, displays, or consumer electronics sold in the US market, a targeted FTO review is warranted.

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Official verdict

Official order — verbatim text

Pursuant to an agreement by the parties, and in accordance with Federal Rule of Civil Procedure 41(a)(1)(A)(ii), Plaintiff Lexington Luminance LLC and Defendant Wayfair LLC hereby stipulate to the dismissal of all claims and counterclaims of this action with prejudice, with each party to bear its own costs, expenses and attorneys’ fees
Source: PACER Docket, Case 6:22-cv-01017, Texas Western District Court

The stipulation invokes Rule 41(a)(1)(A)(ii) and dismisses all claims and counterclaims with prejudice, with each party bearing its own fees and costs. This language forecloses re-litigation of the same claims between these parties but contains no merits findings on infringement or validity. The absence of a fee-shifting award is consistent with a negotiated resolution rather than a contested judgment.

PACER case 6:22-cv-01017 · Public docket record Explore in Eureka ↗
Judgment terms

Consent judgment: what the agreed resolution means for both parties

Legal mechanism

A consent judgment is a binding court-entered judgment on agreed terms

A consent judgment is not merely a settlement agreement — it is a judgment formally entered by the court on terms the parties have agreed to, making it enforceable as a court order. Here the parties invoked Rule 41(a)(1)(A)(ii) as the procedural vehicle for stipulated dismissal. The recorded basis of termination is Consent Judgment; the docket order styles the disposition as a stipulated dismissal with prejudice. The specific terms of the parties' agreement are not disclosed in the available record.

Court-entered, binding & final
Patent holder outcome

Lexington Luminance's claims resolved with prejudice — case cannot be refiled

The consent judgment disposes of all of Lexington Luminance's claims against Wayfair with prejudice, meaning Lexington Luminance cannot re-assert the same claims based on the same conduct against Wayfair in a future action. US6936851B2 remains a live patent that Lexington Luminance may assert against other parties. The specific terms of any arrangement between the parties are not disclosed in the public record.

Claims dismissed with prejudice
Defendant outcome

Wayfair exits the litigation with no public admission of liability

The stipulation contains no recorded finding of infringement or validity. Wayfair bears its own attorneys' fees and costs. The consent judgment insulates Wayfair from further litigation by Lexington Luminance on these specific claims. Whether any broader commercial arrangement accompanied the resolution is not reflected in the available record.

No liability finding on record
Commercial implications

US6936851B2 remains enforceable against the broader LED and lighting sector

A consent judgment resolves only the dispute between these specific parties. US6936851B2, covering semiconductor light-emitting device technology, is not invalidated by this resolution. Companies in the LED lighting, consumer electronics, and e-commerce product supply chain that have not taken steps to clear this patent should evaluate their exposure. The swift resolution — 228 days — suggests parties in this technology space may find early negotiated resolution preferable to full merits litigation.

Patent remains active & assertable
Legal analysis based on PACER docket records for case 6:22-cv-01017 and PatSnap Eureka litigation intelligence Search PatSnap Eureka ↗
Parties and representation

Full party and counsel information

RoleNameTypeDetail
PlaintiffLexington Luminance, LLCCompany/Search in Eureka ↗
DefendantWayfair, Inc.Company/Search in Eureka ↗
Plaintiff counselRobert D. KatzAttorneyCounsel for Lexington Luminance, LLCSearch in Eureka ↗
Plaintiff law firmKatz P LLCLaw FirmRepresenting Lexington Luminance, LLCSearch in Eureka ↗
Defendant counselRobert P. LordAttorneyCounsel for Wayfair, Inc.Search in Eureka ↗
Defendant law firmFerguson Braswell Fraser Kubasta PCLaw FirmRepresenting Wayfair, Inc.Search in Eureka ↗
Presiding judgeJudge Alan D AlbrightJudgeTexas Western District CourtSearch in Eureka ↗
R&D signals

R&D signals in the semiconductor LED and lighting IP space

Patent and innovation intelligence derived from the Lexington Luminance v. Wayfair dispute — surfacing portfolio trends, filing activity, and white-space opportunities in LED device technology.

Patent portfolio

Lexington Luminance's LED patent portfolio and assertion footprint

Lexington Luminance holds US6936851B2 as an asserted asset in what may be a broader LED-focused patent portfolio. Mapping the full scope of patents held or licensed by Lexington Luminance — including any family members, continuations, or related applications — can reveal the full assertion risk surface for companies in the semiconductor lighting supply chain.

PAE portfolio mapping
Technology landscape

Filing trends in semiconductor LED device and manufacturing patents

The technology class covering semiconductor light-emitting devices and manufacturing methods has seen sustained global filing activity from major players including Nichia, Cree, Samsung, and Osram. Understanding filing velocity, claim scope trends, and geographic coverage in this space helps R&D teams anticipate where the next enforcement vectors may emerge — and where design-around space exists.

LED filing trend analysis
Competitor IP posture

Wayfair's IP strategy in an LED-heavy product catalogue

As a major e-commerce platform for home goods — a category saturated with LED lighting products — Wayfair's patent posture and supplier agreements determine its exposure to semiconductor device patent assertions. Examining Wayfair's own IP filings, any defensive publications, and its supplier indemnification practices can signal how it is building resilience against future LED patent campaigns.

E-commerce LED IP posture
White-space opportunity

Adjacent innovation space: next-gen LED structures and novel manufacturing methods

US6936851B2 covers established semiconductor LED device architecture. The adjacent innovation space — including micro-LED, quantum dot LED, and advanced epitaxial growth techniques — remains an active R&D frontier with significant white space in patenting. Companies investing in these next-generation architectures may be able to build clean IP positions that design around legacy LED device patents.

Micro-LED & next-gen whitespace
Related litigation

Similar LED and semiconductor patent cases in W.D. Texas

Explore comparable semiconductor LED patent infringement actions filed in the Western District of Texas, including cases involving patent assertion entities targeting product distributors.

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Lexington Luminance, LLC patent enforcement history, Texas Western District Court case history, Lexington Luminance, LLC's full IP portfolio, and comparable case analysis
LED patent cases W.D. TexasLexington Luminance prior suitsJudge Albright LED docketSemiconductor device PAE actions
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Strategic implications

What this case signals for the semiconductor LED IP landscape

A rapid consent judgment in W.D. Texas over a core LED device patent carries forward-looking implications for the lighting and e-commerce supply chain.

W.D. Texas LED patent cases are resolving fast — budget for early settlement pressure

At 228 days, this case closed before meaningful merits litigation. Companies selling LED-integrated products through e-commerce channels should anticipate early assertion and price that risk into procurement and IP clearance budgets. Judge Albright's docket continues to attract patent assertion entities targeting product resellers.

US6936851B2 survives this action — downstream LED product sellers remain exposed

The consent judgment is party-specific. US6936851B2 was not invalidated or found unenforceable. Any company in the semiconductor LED supply chain — from OEM manufacturers to retail platforms — that has not cleared this patent faces potential exposure if Lexington Luminance pursues further assertions.

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Full strategic analysis in PatSnap Eureka
Unlock the full strategic analysis for this W.D. Texas district court LED patent assertion, including portfolio patterns and exposure benchmarks.
Assertion campaign mapComparable defendant outcomesLED patent exposure ranking
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Analysis powered by PatSnap Eureka Litigation Intelligence Explore in Eureka ↗
Frequently asked questions

Lexington v Wayfair — key questions answered

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Monitor LED patent assertions and protect your product portfolio

US6936851B2 remains active following this consent judgment. Use PatSnap Eureka to track new Lexington Luminance filings, run FTO searches across the semiconductor LED claim landscape, and set alerts for assertions targeting product distributors.

Disclaimer

This page is compiled from public court dockets and third-party patent and litigation data via PatSnap Eureka, and is provided for general informational purposes only. The information shown — including party names, patent and application numbers, dates, case status, outcomes, and any analysis — may be incomplete, may not reflect the most recent filings or legal status, and may contain errors or omissions. Verify all details against official court records (for example, PACER) and the relevant patent office before relying on them.

Nothing on this page constitutes legal advice or a legal opinion on the validity, infringement, enforceability, or scope of any patent or case, and no attorney‑client relationship is created by its use. Any description of an outcome (such as a dismissal, settlement, or consent judgment) is a general summary, not a legal determination. All patents, trademarks, and company or law‑firm names are the property of their respective owners. PatSnap makes no warranty as to the accuracy or completeness of this content and disclaims, to the fullest extent permitted by law, all liability for reliance on it. For advice on a specific matter, consult qualified legal counsel.

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