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CommScope v. TQ Delta — Federal Circuit Bonded Transceiver Patent Appeal | PatSnap
Patent Litigation

CommScope & ARRIS v. TQ Delta: Federal Circuit Appeal Over Bonded Transceiver Patents

CommScope Holding, ARRIS, Avago, and Broadcom faced TQ Delta LLC in a Federal Circuit appeal involving 26 patents directed to bonded transceiver technology. The appeal ran 764 days before closing. The recorded basis of termination is Appeal Dismissed; the docket verdict text states AFFIRMED.

Resolution time
764days
764 days — above the Federal Circuit median for patent infringement appeals
Patents asserted
26
US8090008B2 and 25 further patents asserted — bonded transceiver technology portfolio
Outcome
Appeal Dismissed
Recorded basis of termination; docket verdict text separately states AFFIRMED
Cost ruling
Not disclosed
No cost or fee ruling is recorded in the available case data
Published by PatSnap Insights Team · Verified by PatSnap Eureka Data
Case overview

26 Bonded Transceiver Patents at the Federal Circuit: How the Appeal Ended

CommScope Holding Company, Inc., CommScope, Inc., ARRIS Solutions, Inc., Arris Technology, Inc., Arris Enterprises, LLC, and Arris U.S. Holdings, Inc. — together with Avago Technologies International Sales Pte. Limited, Broadcom Incorporated, and Broadcom Corporation — appealed to the Court of Appeals for the Federal Circuit in case No. 24-1588, filed 21 March 2024. The appeal arose from an infringement action brought by TQ Delta, LLC and involved 26 asserted patents directed to technology operable as bonded transceivers.

The case closed on 24 April 2026 after 764 days. The recorded basis of termination is 'Appeal Dismissed'; the docket order states 'THIS CAUSE having been considered, it is ORDERED AND ADJUDGED: AFFIRMED.' These two characterisations are reported here as-is from the available record — the specific terms and procedural mechanism underlying the resolution are not disclosed in the available record.

A duration of 764 days is notable for a Federal Circuit appeal and may suggest complex multi-patent claim handling or interim procedural activity. What drove the precise form of the resolution — and what the outcome means for the underlying district court judgment — is not determinable from the public record alone. The specific terms of any agreement or further proceedings, if any, are not disclosed in the available record.

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Case at a glance
Case no.24-1588
DefendantTQ Delta, LLC
CourtCourt of Appeals for the Federal Circuit
JudgeN/A
FiledMarch 21, 2024
ClosedApril 24, 2026
Duration764 days
OutcomeAppeal Dismissed
Verdict causeInfringement Action
BasisAppeal Dismissed
Prior Art Intelligence
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Case data sourced from PACER / Court of Appeals for the Federal Circuit via PatSnap Eureka Litigation Intelligence Explore similar cases ↗
Case timeline

Filing to Appeal Dismissed in 764 days

764 days — above the Federal Circuit median for patent infringement appeals

Case timeline: Appeal filed MAR 21 2024 — 764 days total Horizontal timeline showing the three key events in CommScope Holding Company, Inc. v TQ Delta, LLC from filing to resolution. Source: PACER, Court of Appeals for the Federal Circuit. MAR 21 2024 Appeal filed Pre-trial proceedings APR 24 2026 Appeal Dismissed 764 DAYS TOTAL
Patent at issue

US8090008B2 and 25 further patents — bonded transceiver technology portfolio

Publication No.US8090008B2
Application No.US12/783725
Patent details
ProductBonded transceiver communication systems
Cited in actionMarch 21, 2024

Publication No.US7570686B2
Application No.US10/619691
Patent details
ProductDSL transceiver signalling and bonding methods
Cited in actionMarch 21, 2024

Publication No.US8468411B2
Application No.US12/783765
Patent details
ProductBonded transceiver data transmission systems
Cited in actionMarch 21, 2024

Publication No.D886416
Application No.US29/645978
Patent details
ProductDesign — networking or broadband equipment visual design
Cited in actionMarch 21, 2024

Publication No.US7453881B2
Application No.US10/264258
Patent details
ProductMulti-carrier DSL transceiver systems
Cited in actionMarch 21, 2024

Publication No.US8937988B2
Application No.US14/079285
Patent details
ProductError correction and retransmission in bonded transceivers
Cited in actionMarch 21, 2024

Publication No.US7844882B2
Application No.US12/761586
Patent details
ProductBonded DSL transceiver management systems
Cited in actionMarch 21, 2024

Publication No.US9300601B2
Application No.US14/682435
Patent details
ProductPacket scheduling and bonded transceiver control
Cited in actionMarch 21, 2024

Publication No.US8495473B2
Application No.US13/567261
Patent details
ProductForward error correction in bonded transceiver systems
Cited in actionMarch 21, 2024

Publication No.US9014193B2
Application No.US14/465502
Patent details
ProductBonded transceiver line management methods
Cited in actionMarch 21, 2024

Publication No.D903237
Application No.US29/705878
Patent details
ProductDesign — broadband equipment visual design
Cited in actionMarch 21, 2024

Publication No.US10409510B2
Application No.US15/874277
Patent details
ProductUser interface or display for bonded transceiver systems
Cited in actionMarch 21, 2024

Publication No.US8594162B2
Application No.US13/914852
Patent details
ProductBonded transceiver synchronisation and framing
Cited in actionMarch 21, 2024

Publication No.D905380
Application No.US29/731083
Patent details
ProductDesign — broadband or networking equipment visual design
Cited in actionMarch 21, 2024

Publication No.US9894014B2
Application No.US15/057741
Patent details
ProductBonded transceiver resource allocation methods
Cited in actionMarch 21, 2024

Publication No.US8462835B2
Application No.US12/769193
Patent details
ProductDSL bonding transceiver signal processing
Cited in actionMarch 21, 2024

Publication No.US9547608B2
Application No.US15/046821
Patent details
ProductMemory management in bonded transceiver systems
Cited in actionMarch 21, 2024

Publication No.US9094348B2
Application No.US14/075194
Patent details
ProductBonded transceiver data link layer methods
Cited in actionMarch 21, 2024

Publication No.US9485055B2
Application No.US14/159125
Patent details
ProductBonded transceiver power management systems
Cited in actionMarch 21, 2024

Publication No.US10833809B2
Application No.US16/701343
Patent details
ProductBonded transceiver network management methods
Cited in actionMarch 21, 2024

Publication No.D859788
Application No.US29/617421
Patent details
ProductDesign — networking equipment visual design
Cited in actionMarch 21, 2024

Publication No.US8276048B2
Application No.US12/901699
Patent details
ProductBonded transceiver error detection and correction
Cited in actionMarch 21, 2024

Publication No.US9154354B2
Application No.US14/591612
Patent details
ProductBonded transceiver quality-of-service systems
Cited in actionMarch 21, 2024

Publication No.US10044473B2
Application No.US15/298526
Patent details
ProductBonded transceiver multi-channel aggregation methods
Cited in actionMarch 21, 2024

Publication No.US8595577B2
Application No.US12/760728
Patent details
ProductBonded transceiver initialization and training methods
Cited in actionMarch 21, 2024

Publication No.US10567112B2
Application No.US16/126027
Patent details
ProductBonded transceiver multi-pair aggregation systems
Cited in actionMarch 21, 2024
Technical brief · sourced from PatSnap patent database
Patent figurePatent figure
Representative claim (1 of 2 independent)
1. A method for scrambling phase characteristics of carrier signals in a first multicarrier transceiver that uses a plurality of carrier signals for modulating a bit stream, wherein each carrier signal has a phase characteristic associated with the bit stream, the method comprising: associating each carrier signal with a value determined independently of any bit value of the bit stream carried by that respective carrier signal, the value associated with each carrier signal determined using a pseudo-random number generator; computing a phase shift for each carrier signal based on the value associated with that car…
Technical background
RELATED APPLICATION This application is a Continuation of U.S. patent application Ser. No. 12/255,713, filed Oct. 22, 2008, now U.S. Pat. No. 7,769,104, which is a Continuation of U.S. patent application Ser. No. 11/863,581, filed Sep. 28, 2007, now U.S. Pat. No. 7,471,721, which is a Continuation of U.S. application Ser. No. 11/211,535, filed Aug. 26, 2005, now U.S. Pat. No. 7,292,627, which is a Continuation of U.S. patent application Ser. No. 09/710,310, filed Nov. 9, 2000, now U.S. Pat. No. 6,961,369, which cla…
Patent family
27 family members across 1 jurisdiction (US)
PatSnap Eureka · FTO Search Agent
Should you run an FTO against TQ Delta's bonded transceiver patents?

Any R&D team or product organisation developing hardware or software operable as bonded transceivers — including DSL bonding gateways, chipsets, firmware, and access network equipment — should consider a structured FTO review against TQ Delta's 26-patent portfolio. The Federal Circuit appeal's closure without a public reversal on record means the portfolio's enforceability has not been publicly negated at the appellate level.

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Official verdict

Official order — verbatim text

THIS CAUSE having been considered, it is ORDERED AND ADJUDGED: AFFIRMED
Source: PACER Docket, Case 24-1588, Court of Appeals for the Federal Circuit

The docket order states 'THIS CAUSE having been considered, it is ORDERED AND ADJUDGED: AFFIRMED,' indicating the panel found no reversible error in the decision below. The recorded basis of termination is separately listed as 'Appeal Dismissed.' Both entries are reported as-is from the available record; the specific procedural mechanism reconciling them is not disclosed in the available public record.

PACER case 24-1588 · Public docket record Explore in Eureka ↗
Dismissal terms

Appeal Dismissed: what the Federal Circuit's recorded termination means

Legal mechanism

What 'Appeal Dismissed' means at the Federal Circuit

A dismissal at the appellate level ends the appeal proceedings without a full merits adjudication on the record — or, in some configurations, reflects a procedural resolution after the panel's consideration. Here, the recorded basis of termination is 'Appeal Dismissed,' while the docket verdict text separately states 'AFFIRMED.' The specific procedural mechanism reconciling these two entries is not disclosed in the available record.

Appellate dismissal recorded
Appellant outcome

CommScope & ARRIS: appeal closed without a public merits win

For the CommScope and ARRIS appellants, the recorded dismissal means the appeal did not yield a published merits reversal in their favour on the available record. The docket also reflects an AFFIRMED notation, which would typically sustain TQ Delta's position below. The downstream effect on the underlying district court proceedings is not determinable from the public record.

No reversal on record
Appellee outcome

TQ Delta: AFFIRMED notation supports underlying patent position

The docket's AFFIRMED notation is consistent with TQ Delta's 26-patent bonded transceiver portfolio remaining intact at the appellate level. However, because the recorded basis of termination is 'Appeal Dismissed,' the precise enforceability implications of the Federal Circuit's order for each of the 26 asserted patents are not determinable solely from the available public record.

Portfolio position maintained
Commercial implications

26-patent bonded transceiver portfolio: enforcement risk remains live

With the Federal Circuit appeal closed and no published reversal, companies developing or selling products operable as bonded transceivers — including DSL chipsets and broadband access equipment — face continued exposure to TQ Delta's extensive patent portfolio. The outcome underscores the importance of FTO analysis across all 26 asserted patents before commercialising bonded transceiver technology.

Enforcement risk persists
Legal analysis based on PACER docket records for case 24-1588 and PatSnap Eureka litigation intelligence Search PatSnap Eureka ↗
Parties and representation

Full party and counsel information

RoleNameTypeDetail
PlaintiffCommScope Holding Company, Inc.Company/Search in Eureka ↗
Co-PlaintiffCommScope, Inc.CompanySearch in Eureka ↗
Co-PlaintiffARRIS Solutions, Inc.CompanySearch in Eureka ↗
Co-PlaintiffArris Technology, Inc.CompanySearch in Eureka ↗
Co-PlaintiffArris Enterprises, LLCCompanySearch in Eureka ↗
Co-PlaintiffArris U.S. Holdings, Inc.CompanySearch in Eureka ↗
DefendantTQ Delta, LLCCompany/Search in Eureka ↗
Co-DefendantAvago Technologies International Sales Pte. LimitedCompanySearch in Eureka ↗
Co-DefendantBroadcom IncorporatedIndividualSearch in Eureka ↗
Co-DefendantBroadcom CorporationCompanySearch in Eureka ↗
Plaintiff counselBrett M. SchumanAttorneyCounsel for CommScope Holding Company, Inc.Search in Eureka ↗
Plaintiff counselCraig LytleAttorneyCounsel for CommScope Holding Company, Inc.Search in Eureka ↗
Plaintiff counselJesse LempelAttorneyCounsel for CommScope Holding Company, Inc.Search in Eureka ↗
Plaintiff law firmGoodwin Procter LLPLaw FirmRepresenting CommScope Holding Company, Inc.Search in Eureka ↗
Defendant counselDavid Z. PettyAttorneyCounsel for TQ Delta, LLCSearch in Eureka ↗
Defendant counselPeter J. McAndrewsAttorneyCounsel for TQ Delta, LLCSearch in Eureka ↗
Defendant counselRajendra A. ChiplunkarAttorneyCounsel for TQ Delta, LLCSearch in Eureka ↗
Defendant law firmMcAndrews, Held & Malloy Ltd.Law FirmRepresenting TQ Delta, LLCSearch in Eureka ↗
Presiding judgeJudge N/AJudgeCourt of Appeals for the Federal CircuitSearch in Eureka ↗
R&D signals

R&D signals in the bonded transceiver and DSL patent space

Forward-looking patent intelligence derived from CommScope, ARRIS, TQ Delta, Broadcom, and Avago's activity in bonded transceiver and broadband access technology.

Patent portfolio

TQ Delta's bonded transceiver portfolio: depth and continuation risk

TQ Delta's assertion of 26 patents — spanning applications filed from the early 2000s through mid-2010s — suggests an active portfolio management strategy. Monitoring TQ Delta's continuation and divisional filing activity in the bonded transceiver space is essential for companies seeking to track future assertion exposure in DSL bonding technology.

Portfolio monitoring
Technology landscape

DSL bonding and bonded transceiver filing trends post-2020

As broadband access networks evolve toward fibre and next-generation DSL (G.fast, XGS-PON), patent filing activity in bonded transceiver aggregation and multi-pair bonding continues in adjacent domains. Tracking filing trends in this space helps R&D teams identify where innovation is concentrating and where licensing pressure is likely to intensify.

Filing trend analysis
Competitive IP posture

CommScope and ARRIS: patent positioning in broadband access

CommScope and ARRIS collectively hold significant patent portfolios in broadband access, cable, and DSL infrastructure. Understanding their filing activity in bonded transceiver and adjacent technologies reveals both their defensive IP posture and potential cross-licensing assets relevant to ongoing enforcement disputes in this sector.

Defensive portfolio
White space

Adjacent innovation opportunities near the bonded transceiver claim space

TQ Delta's 26-patent portfolio concentrates on bonded DSL transceiver signalling, error correction, and management. Adjacent white-space areas — such as software-defined bonding controllers, AI-driven line management, and fibre-DSL hybrid bonding — may represent innovation opportunities with lower current assertion density for R&D teams entering the broadband access market.

White-space opportunity
Related litigation

Similar Federal Circuit appeals involving DSL and bonded transceiver patents

Explore Federal Circuit patent appeals involving DSL bonding, broadband transceiver technology, and large multi-patent portfolio assertions by licensing entities — the same landscape as case 24-1588.

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Access 40+ similar cases in PatSnap Eureka
CommScope Holding Company, Inc. patent enforcement history, Court of Appeals for the Federal Circuit case history, CommScope Holding Company, Inc.'s full IP portfolio, and comparable case analysis
TQ Delta prior appealsDSL patent assertionsBroadcom patent appealsMulti-patent Fed Circuit cases
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Strategic implications

What this case signals for the bonded transceiver IP landscape

A 26-patent Federal Circuit appeal involving major broadband infrastructure players carries clear signals for the DSL and bonded transceiver technology sector.

FTO across TQ Delta's 26-patent portfolio is now a commercial necessity

With the Federal Circuit appeal closed and no public reversal on record, TQ Delta's bonded transceiver portfolio emerges from appellate review without a documented adverse ruling. Any company commercialising bonded transceiver or DSL bonding technology should treat FTO analysis across all 26 asserted patents as a baseline due-diligence step.

Large appellate patent portfolios signal licensing pressure across the supply chain

TQ Delta's assertion of 26 patents in a single Federal Circuit appeal — spanning utility and design patents — suggests a broad licensing strategy targeting multiple layers of the broadband supply chain. Chipset vendors, equipment manufacturers, and network operators should monitor TQ Delta's assertion activity and portfolio evolution closely.

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Full strategic analysis in PatSnap Eureka
Unlock deeper analysis of TQ Delta's broadband patent enforcement strategy and Federal Circuit appellate risk signals for DSL and bonded transceiver technology.
Chipset vendor exposureDesign patent FTO trackTQ Delta licensing patterns
Unlock full analysis →
Analysis powered by PatSnap Eureka Litigation Intelligence Explore in Eureka ↗
Frequently asked questions

CommScope v TQ — key questions answered

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PatSnap Eureka

Monitor bonded transceiver patent risk with PatSnap Eureka

TQ Delta's 26-patent portfolio remains active following the Federal Circuit appeal. Use Eureka's FTO Search Agent and portfolio tracker to map your bonded transceiver products against the full claim set and receive alerts on new TQ Delta filings.

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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