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Cedar Lane Technologies v. Xerox — Imaging Array Patent Dismissal | PatSnap
Patent Litigation

Cedar Lane Technologies v. Xerox: Voluntary Dismissal After 98 Days

Cedar Lane Technologies filed a three-patent infringement action against Xerox Corp. in the Western District of Texas, asserting patents covering imaging array host interfaces and JPEG compression modules. The case resolved in just 98 days when Cedar Lane voluntarily dismissed without prejudice before Xerox had answered the complaint.

Resolution time
98days
98 days — resolved well under the median first-instance patent case duration
Patents asserted
3
US6972790B2, US8537242B2, and US6473527B1 — imaging array interface and JPEG compression patents
Outcome
Voluntary dismissal
Dismissed without prejudice by plaintiff under Rule 41(a)(1)(A)(i) before defendant answered
Cost ruling
Not recorded
No cost or fee ruling recorded in the available public record
Published by PatSnap Insights Team · Verified by PatSnap Eureka Data
Case overview

Three imaging patents, one fast exit: Cedar Lane drops Xerox suit

Cedar Lane Technologies, Inc. filed suit against Xerox Corp. on 3 November 2022 in the Western District of Texas (Case No. 6:22-cv-01153) before Judge Alan D. Albright. The complaint asserted infringement of three patents: US6972790B2, US8537242B2, and US6473527B1, which relate to host interfaces for imaging arrays and modules for interfacing analog/digital converting means with JPEG compression means — technology relevant to digital imaging and document-processing pipelines.

The recorded basis of termination is Voluntary dismissal. The docket order states that pursuant to Federal Rule of Civil Procedure 41(a)(1)(A)(i), plaintiff dismissed the action without prejudice, and that defendant had not yet answered the complaint or moved for summary judgment at the time of dismissal. The dismissal therefore took effect as of right, requiring no court order or defendant consent. The specific terms underlying the dismissal are not disclosed in the available record.

The 98-day lifespan — from filing to closure on 9 February 2023 — is notably short even for cases that settle early. A Rule 41(a)(1)(A)(i) dismissal without prejudice leaves Cedar Lane free to refile claims based on the same patents, subject to applicable statutes of limitations and potential cost implications under Rule 41(d) upon any refiling. What drove the decision to dismiss at this early stage is not disclosed in the public record.

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Case at a glance
DefendantXerox, Corp.
CourtTexas Western District Court
JudgeAlan D Albright
FiledNovember 3, 2022
ClosedFebruary 9, 2023
Duration98 days
OutcomeVoluntary dismissal
Verdict causeInfringement Action
BasisVoluntary dismissal
Prior Art Intelligence
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Case timeline

Filing to Voluntary dismissal in 98 days

98 days — resolved well under the median first-instance patent case duration

Case timeline: Complaint filed NOV 3 2022 — 98 days total Horizontal timeline showing the three key events in Cedar Lane Technologies, Inc. v Xerox, Corp. from filing to resolution. Source: PACER, Texas Western District Court. NOV 3 2022 Complaint filed Pre-trial proceedings FEB 9 2023 Voluntary dismissal 98 DAYS TOTAL
Patent at issue

US6972790B2, US8537242B2 & US6473527B1 — imaging array and JPEG compression patents

Publication No.US6972790B2
Application No.US09/742723
Patent details
ProductHost interface for imaging arrays
Cited in actionNovember 3, 2022

Publication No.US8537242B2
Application No.US11/259791
Patent details
ProductModule and method for interfacing analog/digital converting means with JPEG compression
Cited in actionNovember 3, 2022

Publication No.US6473527B1
Application No.US09/324095
Patent details
ProductHost interface for imaging arrays — foundational architecture
Cited in actionNovember 3, 2022
Technical brief · sourced from PatSnap patent database
US6972790B2Primary patent
Patent figurePatent figure
Technology summary
The integration of a memory and control circuit within the CMOS imaging array allows direct data access to a processor system, addressing the interface incompatibility issue and optimizing CMOS technology's cost benefits by streamlining data transfer.
Representative claim (1 of 2 independent)
1. An interface for receiving data from an image sensor having an imaging array and a clock generator for transfer to a processor system comprising: a memory for storing imaging array data and clocking signals at a rate determined by the clocking signals; a signal generator for generating a signal for transmission to the processor system in response to the quantity of data in the memory; and a circuit for controlling the transfer of the data from the memory at a rate determined by the processor system.
Technical background
This application claims the benefit of U.S. Provisional Patent Application Ser. No. 60/177,496 filed on Jan. 21, 2000. FIELD OF THE INVENTION The invention relates generally to integrated electronic image sensing circuitry and more particularly to CMOS imaging circuitry. BACKGROUND OF THE INVENTION Integrated circuit (IC) technology, applied to imaging, is revolutionizing that field. Semiconductors can be used to represent an image as an electrical signal. Charge coupled devices (CCDs) are the most significant comm…
Patent family
16 family members across 4 jurisdictions (JP, EP, US, CA)
PatSnap Eureka · FTO Search Agent
Should you run an FTO analysis against US6972790B2, US8537242B2 and US6473527B1?

Any organisation designing or commercialising products that integrate image sensors with host interfaces or that perform on-device JPEG compression should assess exposure to these three patents. The risk is not limited to direct competitors of Xerox — the asserted patents appear to cover architectural and method-level features common across the broader digital imaging and document-processing market, including MFPs, scanner modules, industrial vision systems, and embedded camera products.

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Official verdict

Official order — verbatim text

Pursuant to Federal Rule of Civil Procedure 41(a)(1)(A)(i), Plaintiff hereby dismisses this action without prejudice. Defendant has not yet answered the Complaint or moved for summary judgment.
Source: PACER Docket, Case 6:22-cv-01153, Texas Western District Court

The docket order records a Rule 41(a)(1)(A)(i) voluntary dismissal without prejudice, filed by plaintiff Cedar Lane Technologies before Xerox had answered or moved for summary judgment. The dismissal is self-executing under the Federal Rules and carries no findings on infringement, validity, or claim scope. Neither party obtains a merits-based advantage from this procedural exit.

PACER case 6:22-cv-01153 · Public docket record Explore in Eureka ↗
Dismissal terms

Voluntarily dismissed: what the Rule 41 exit means for both parties

Legal mechanism

Rule 41(a)(1)(A)(i): dismissal as of right, no court order needed

Under Federal Rule of Civil Procedure 41(a)(1)(A)(i), a plaintiff may dismiss an action without a court order at any time before the opposing party serves an answer or a motion for summary judgment. Because Xerox had done neither, Cedar Lane's notice was self-executing. The dismissal is without prejudice, meaning the claims are not adjudicated on the merits.

No merits adjudication
Plaintiff outcome

Without prejudice: Cedar Lane retains the right to refile

A without-prejudice dismissal does not extinguish Cedar Lane's patent claims. The company may refile suit on the same patents against Xerox or other defendants, subject to the patent term and applicable limitations periods. However, if Cedar Lane refiles against Xerox in the same court, Rule 41(d) gives the court discretion to award Xerox its costs from this dismissed action. The public record is silent on any agreement between the parties that may have prompted the dismissal.

Refiling remains possible
Defendant outcome

Xerox exits without admissions but faces residual uncertainty

Because the dismissal was without prejudice and on no merits ruling, Xerox obtained no judgment of non-infringement or invalidity. The three asserted patents remain in force for the remainder of their terms. Xerox secures no estoppel protection and cannot rely on this case as a bar to future infringement claims on these patents from Cedar Lane or any successor-in-interest.

No invalidity ruling secured
Commercial implications

Patents survive intact — imaging sector watch warranted

All three patents — covering host interfaces for imaging arrays and JPEG compression integration — remain enforceable. Companies developing or selling products in digital imaging, document processing, or camera sensor pipelines that touch these technical areas should note that the voluntary dismissal does not signal patent abandonment or licensing closure. The specific terms prompting the withdrawal are not disclosed in the available record.

Imaging IP risk persists
Legal analysis based on PACER docket records for case 6:22-cv-01153 and PatSnap Eureka litigation intelligence Search PatSnap Eureka ↗
Parties and representation

Full party and counsel information

RoleNameTypeDetail
PlaintiffCedar Lane Technologies, Inc.CompanyPatent assertion entity — holder of US6972790B2, US8537242B2, and US6473527B1 in imaging and JPEG compressionSearch in Eureka ↗
DefendantXerox, Corp.CompanyXerox Corp. — multinational document technology and imaging solutions companySearch in Eureka ↗
Plaintiff counselIsaac RabicoffAttorneyCounsel for Cedar Lane Technologies, Inc.Search in Eureka ↗
Plaintiff law firmRabicoff Law LLCLaw FirmRepresenting Cedar Lane Technologies, Inc.Search in Eureka ↗
Defendant counselJeremy P. OczekAttorneyCounsel for Xerox, Corp.Search in Eureka ↗
Defendant counselStacey V. ReeseAttorneyCounsel for Xerox, Corp.Search in Eureka ↗
Defendant law firmBond, Schoeneck & King, PLLCLaw FirmRepresenting Xerox, Corp.Search in Eureka ↗
Defendant law firmStacey V. Reese Law PLLCLaw FirmRepresenting Xerox, Corp.Search in Eureka ↗
Presiding judgeJudge Alan D AlbrightJudgeTexas Western District CourtSearch in Eureka ↗
R&D signals

R&D signals in the digital imaging and compression IP space

Forward-looking patent intelligence derived from Cedar Lane v. Xerox: portfolio activity, filing trends, and white-space opportunities in imaging array and JPEG compression technology.

Patent portfolio

Cedar Lane's imaging patent portfolio: scope beyond this case

Cedar Lane asserted three patents spanning sensor host interfaces and JPEG compression integration. Understanding whether Cedar Lane holds additional continuations, divisionals, or related family members in the imaging pipeline space is critical for companies evaluating FTO or anticipating future enforcement actions in this technology area.

Portfolio depth signal
Technology landscape

Filing trends in imaging array host interface and JPEG compression patents

The patents asserted in this case relate to host interface architectures for imaging arrays and methods of integrating A/D conversion with JPEG compression — foundational technologies in digital imaging. Tracking current filing trends in this space can reveal which players are actively building defensive or offensive positions and where technology development is accelerating.

Filing trend signal
Competitor IP posture

Xerox's patent position in imaging and document processing

As a major player in document technology and imaging solutions, Xerox maintains a substantial patent portfolio in adjacent areas. Analysing Xerox's own imaging pipeline and compression-related filings can inform competitive intelligence for companies operating in the multifunction printer, scanner, and enterprise imaging markets.

Competitor IP signal
White space

Adjacent R&D opportunities near imaging array interface patents

The intersection of sensor host interfaces and real-time image compression represents an established but evolving space. Adjacent white-space opportunities may exist in next-generation compression standards (HEIF, AVIF), AI-accelerated imaging pipelines, and edge-device sensor integration — areas where the foundational patents asserted here do not reach but where new IP positions can be established.

White-space opportunity
Related litigation

Similar imaging array and JPEG compression patent cases in W.D. Texas

Explore patent infringement cases in the Western District of Texas involving imaging array interfaces, JPEG compression, and digital document processing technology.

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Cedar Lane Technologies, Inc. patent enforcement history, Texas Western District Court case history, Cedar Lane Technologies, Inc.'s full IP portfolio, and comparable case analysis
JPEG compression patent casesCedar Lane other filingsW.D. Texas imaging disputesImaging sensor interface suits
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Strategic implications

What this case signals for the imaging and document tech IP landscape

A pre-answer voluntary dismissal in a multi-patent imaging case leaves enforcement optionality open and signals active portfolio deployment.

Pre-answer dismissal preserves full enforcement optionality on all three patents

Cedar Lane's Rule 41(a)(1)(A)(i) exit before Xerox answered means no claim construction, no invalidity ruling, and no estoppel. All three imaging and JPEG compression patents remain fully enforceable. Competitors and licensees in the imaging hardware space should treat these patents as live enforcement risk, not retired assets.

Judge Albright's court remains a venue to monitor for imaging patent disputes

The Western District of Texas under Judge Albright continues to attract patent infringement filings, including in hardware imaging and document processing. IP teams at imaging companies with U.S. operations should maintain watch on new filings in this district against themselves and industry peers to benchmark exposure early.

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Unlock Cedar Lane's full enforcement history and imaging patent landscape analysis for this Western District of Texas case.
Cedar Lane portfolio mapContinuation/divisional riskImaging sector FTO gaps
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Frequently asked questions

Cedar v Xerox — key questions answered

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Monitor Cedar Lane's imaging patents before they reach your products

All three patents asserted in this case remain enforceable after the voluntary dismissal. Run a PatSnap Eureka FTO analysis on US6972790B2, US8537242B2, and US6473527B1 to assess your imaging pipeline exposure and track Cedar Lane's future enforcement activity.

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.

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