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American Patents v. Qualcomm — MIMO Patent Consent Judgment | PatSnap
Patent Litigation

American Patents v. Qualcomm: Consent Judgment on Three MIMO Patents (232 Days)

American Patents LLC filed suit against Qualcomm Inc. and Qualcomm Technologies Inc. in the Western District of Texas asserting three patents covering MIMO channel estimation and time-frequency synchronization. The case resolved via consent judgment after 232 days, with each party bearing its own costs.

Resolution time
232days
232 days from filing to consent judgment — relatively fast resolution before Judge Albright
Patents asserted
3
US7706458B2, US7310304B2 and US7088782B2 — three MIMO wireless systems patents asserted
Outcome
Consent Judgment
Agreed by the parties, entered by the court — binding and final resolution of all claims
Cost ruling
Own Costs
Court ordered each party to bear its own costs, expenses, and legal fees
Published by PatSnap Insights Team · Verified by PatSnap Eureka Data
Case overview

Three MIMO Patents, One Consent Judgment — How the Case Unfolded

On July 12, 2022, American Patents LLC filed an infringement action in the U.S. District Court for the Western District of Texas (Case No. 6:22-cv-00774) against Qualcomm Inc. and Qualcomm Technologies Inc. The complaint asserted three patents — US7706458B2, US7310304B2, and US7088782B2 — covering MIMO channel parameter estimation and time-frequency synchronization, technologies foundational to modern multi-antenna wireless communications. The case was assigned to Judge Alan D. Albright, the court's most prolific patent trial judge.

The recorded basis of termination is Consent Judgment. The docket order states that, pursuant to a Joint Motion to Dismiss filed under Rule 41 of the Federal Rules of Civil Procedure, all claims asserted by American Patents LLC against both Qualcomm entities were dismissed with prejudice, and both parties were ordered to bear their own costs, expenses, and legal fees. The specific terms underlying the parties' agreement are not disclosed in the available record.

Resolution after just 232 days — before the typical Albright-court trial schedule would have been reached — suggests the parties reached an agreed resolution early in the litigation lifecycle. What drove that resolution, and whether any commercial arrangement exists between the parties, is not disclosed in the public record.

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Case at a glance
CourtTexas Western District Court
JudgeAlan D Albright
FiledJuly 12, 2022
ClosedMarch 1, 2023
Duration232 days
OutcomeConsent Judgment
Verdict causeInfringement Action
BasisConsent Judgment
Prior Art Intelligence
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Case data sourced from PACER / Texas Western District Court via PatSnap Eureka Litigation Intelligence Explore similar cases ↗
Case timeline

Filing to Consent Judgment in 232 days

232 days from filing to consent judgment — relatively fast resolution before Judge Albright

Case timeline: Complaint filed JUL 12 2022 — 232 days total Horizontal timeline showing the three key events in American Patents, LLC v Qualcomm, Inc. from filing to resolution. Source: PACER, Texas Western District Court. JUL 12 2022 Complaint filed Pre-trial proceedings MAR 1 2023 Consent Judgment 232 DAYS TOTAL
Patent at issue

US7706458B2, US7310304B2 & US7088782B2 — Core MIMO Wireless Systems Patents

Publication No.US7706458B2
Application No.US11/448395
Patent details
Productchannel parameter estimation in MIMO multi-antenna wireless systems
Cited in actionJuly 12, 2022

Publication No.US7310304B2
Application No.US10/128756
Patent details
Producttime and frequency synchronization in MIMO wireless systems
Cited in actionJuly 12, 2022

Publication No.US7088782B2
Application No.US10/128821
Patent details
ProductMIMO wireless system signal processing methods and apparatus
Cited in actionJuly 12, 2022
Technical brief · sourced from PatSnap patent database
US7706458B2Primary patent
Patent figurePatent figure
Technology summary
By incorporating training symbols and cyclic prefixes in data frames, MIMO OFDM systems can achieve time and frequency synchronization, addressing the operational limitations of existing MIMO systems and enhancing data transmission efficiency.
Representative claim (1 of 8 independent)
1. An apparatus for synchronizing a communication system, the apparatus comprising: a number (Q) of Orthogonal Frequency Division Multiplexing (OFDM) modulators, each OFDM modulator producing a frame having at least one inserted symbol, a plurality of data symbols, and cyclic prefixes; Q transmitting antennas, each transmitting antenna connected to a respective OFDM modulator, the transmitting antennas configured to transmit a respective frame over a channel; a number (L) of receiving antennas for receiving the transmitted frames; and L OFDM demodulators, each OFDM demodulator corresponding to a respective receiv…
Technical background
CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of U.S. patent application Ser. No. 10/128,821, filed Apr. 24, 2002, now U.S. Pat. No. 7,008,782 which claims priority to U.S. Provisional Application No. 60/286,180, filed Apr. 24, 2001, both of which are incorporated herein by reference in their entirety. TECHNICAL FIELD OF THE INVENTION The present invention is generally related to wireless communication systems that employ Orthogonal Frequency Division Multiplexing (OFDM) and, more parti…
Patent family
2 family members across 1 jurisdiction (US)
PatSnap Eureka · FTO Search Agent
Should you run an FTO against US7706458B2, US7310304B2, and US7088782B2?

Any company designing, manufacturing, or selling products that incorporate MIMO multi-antenna wireless communications — including 4G/5G chipsets, mobile devices, wireless routers, base stations, or IoT modules — should assess freedom to operate against these three patents. The fact that these patents were actively asserted against Qualcomm and resolved by consent judgment indicates they were considered credible enough to pursue against a well-resourced defendant.

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Official verdict

Official order — verbatim text

This matter came before the Court upon the Joint Motion to Dismiss filed by Plaintiff American Patents LLC (“Plaintiff”) and Defendants Qualcomm Incorporated and Qualcomm Technologies, Inc. (collectively, “Defendants”). Pursuant to Rule 41 of the Federal Rules of Civil Procedure, it is hereby ORDERED that all claims asserted by Plaintiff against Defendants in this action are hereby dismissed with prejudice. It is further ORDERED that Plaintiff and Defendants shall bear their own costs, expenses, and legal fees in this case.
Source: PACER Docket, Case 6:22-cv-00774, Texas Western District Court

The docket order records an agreed dismissal of all claims with prejudice under Rule 41, with each party bearing its own costs. The recorded basis of termination is Consent Judgment. The with-prejudice designation forecloses future re-assertion of the same claims by American Patents against these Qualcomm entities. The specific commercial or licensing terms, if any, underlying the parties' joint motion are not disclosed in the available record.

PACER case 6:22-cv-00774 · Public docket record Explore in Eureka ↗
Judgment terms

Consent judgment: what the agreed resolution means for both parties

Legal mechanism

What a consent judgment means in patent litigation

A consent judgment is a binding, court-entered judgment reflecting terms agreed upon by the parties. Unlike a unilateral court ruling, it is jointly requested and judicially approved, giving it full res judicata effect. Here, the parties filed a Joint Motion to Dismiss under Rule 41; the recorded basis of termination is Consent Judgment. The specific agreed terms are not disclosed in the public record.

Binding & final
Patent holder outcome

American Patents secures a court-entered judgment

As plaintiff, American Patents LLC obtained a court-entered consent judgment — a formal judicial disposition of its infringement claims against both Qualcomm entities. The dismissal with prejudice (as stated in the docket order) forecloses re-filing of the same claims. What, if anything, American Patents received in exchange is not disclosed in the available record.

Claims resolved with prejudice
Defendant outcome

Qualcomm achieves finality on all asserted MIMO claims

Both Qualcomm Inc. and Qualcomm Technologies Inc. obtained dismissal with prejudice of all claims American Patents asserted under the three MIMO patents. A with-prejudice dismissal bars the plaintiff from reasserting the same claims in future proceedings. Each party bears its own costs, so Qualcomm carries no fee-shifting liability from this resolution.

No fee-shifting awarded
Commercial implications

MIMO patent enforcement: signals for the wireless sector

A consent judgment entered before trial in a high-volume patent court like W.D. Texas under Judge Albright typically signals that parties found resolution commercially preferable to full litigation. The three asserted patents cover MIMO channel estimation and synchronization — core technologies in 4G/5G chipsets. Other wireless chipset and device makers should note that these patents were actively asserted and pursued to a court-entered judgment.

MIMO IP enforcement active
Legal analysis based on PACER docket records for case 6:22-cv-00774 and PatSnap Eureka litigation intelligence Search PatSnap Eureka ↗
Parties and representation

Full party and counsel information

RoleNameTypeDetail
PlaintiffAmerican Patents, LLCCompanyPatent assertion entity — holder of US7706458B2, US7310304B2, and US7088782B2 covering MIMO wireless systemsSearch in Eureka ↗
DefendantQualcomm, Inc.CompanyQualcomm Inc. and Qualcomm Technologies Inc. — leading semiconductor and wireless IP licensorSearch in Eureka ↗
Co-DefendantQualcomm Technologies, Inc.CompanySearch in Eureka ↗
Plaintiff counselC. Ryan PinckneyAttorneyCounsel for American Patents, LLCSearch in Eureka ↗
Plaintiff counselCatherine BartlesAttorneyCounsel for American Patents, LLCSearch in Eureka ↗
Plaintiff counselLarry D. ThompsonAttorneyCounsel for American Patents, LLCSearch in Eureka ↗
Plaintiff counselMatthew AntonelliAttorneyCounsel for American Patents, LLCSearch in Eureka ↗
Plaintiff counselStafford Grigsby Helm DavisAttorneyCounsel for American Patents, LLCSearch in Eureka ↗
Plaintiff counselZachariah HarringtonAttorneyCounsel for American Patents, LLCSearch in Eureka ↗
Plaintiff law firmAlavi & Anaipakos PLLCLaw FirmRepresenting American Patents, LLCSearch in Eureka ↗
Plaintiff law firmAntonelli, Harrington & Thompson LLPLaw FirmRepresenting American Patents, LLCSearch in Eureka ↗
Plaintiff law firmThe Stafford Davis FirmLaw FirmRepresenting American Patents, LLCSearch in Eureka ↗
Defendant counselCatherine GarzaAttorneyCounsel for Qualcomm, Inc.Search in Eureka ↗
Defendant counselEric B. HallAttorneyCounsel for Qualcomm, Inc.Search in Eureka ↗
Defendant counselEric Conley GreenAttorneyCounsel for Qualcomm, Inc.Search in Eureka ↗
Defendant counselRichard S. ZembekAttorneyCounsel for Qualcomm, Inc.Search in Eureka ↗
Defendant law firmFulbright & Jaworski LLPLaw FirmRepresenting Qualcomm, Inc.Search in Eureka ↗
Defendant law firmNorton Rose Fulbright US LLPLaw FirmRepresenting Qualcomm, Inc.Search in Eureka ↗
Presiding judgeJudge Alan D AlbrightJudgeTexas Western District CourtSearch in Eureka ↗
R&D signals

R&D signals in the MIMO wireless patent space

Forward-looking patent and R&D intelligence derived from American Patents LLC v. Qualcomm — covering MIMO channel estimation, synchronization, and multi-antenna wireless systems IP activity.

Patent portfolio

American Patents LLC's MIMO assertion portfolio

American Patents LLC targeted Qualcomm with three coordinated MIMO patents in a single action. Mapping the full portfolio — including related continuations, assignments, and co-pending applications — can reveal whether additional MIMO channel estimation or synchronization claims remain available for assertion against wireless chipset or device makers.

Assertion entity portfolio
Technology landscape

MIMO channel estimation patent filing trends

MIMO channel estimation and time-frequency synchronization are mature but still actively patented technology domains, particularly as 5G NR and Wi-Fi 6/7 deployments scale. Tracking recent filings in these areas can surface new entrants or incumbents building portfolios that could create licensing or litigation pressure on chipset and device manufacturers.

5G/4G MIMO filing trends
Competitor IP posture

Qualcomm's defensive MIMO patent landscape

Qualcomm holds one of the largest wireless communications patent portfolios globally. Understanding the density of its MIMO-related filings — including channel estimation and multi-antenna synchronization — can help competitors and standards bodies assess both freedom-to-operate risk and potential cross-licensing leverage in the 4G/5G chipset space.

Qualcomm MIMO IP depth
White space opportunity

Adjacent innovation gaps near MIMO synchronization patents

The asserted patents focus on classical MIMO channel parameter estimation and synchronization. Adjacent white-space areas — including massive MIMO (mMIMO), beam management, and AI-driven channel estimation for 5G NR — may represent lower-density filing zones where new R&D investment could yield protectable, differentiating IP with reduced overlap with existing assertion portfolios.

Massive MIMO white space
Related litigation

Similar MIMO Patent Infringement Cases in W.D. Texas

Cases involving MIMO wireless technology patents litigated before Judge Albright in the Western District of Texas — including assertion entity actions and consent judgment resolutions.

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American Patents, LLC patent enforcement history, Texas Western District Court case history, American Patents, LLC's full IP portfolio, and comparable case analysis
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Strategic implications

What this case signals for the MIMO wireless IP landscape

Three foundational MIMO patents asserted against the world's leading wireless chipmaker — resolved by consent judgment in under eight months.

Early resolution in Albright's court signals high pre-trial settlement pressure

Judge Albright's W.D. Texas docket is known for aggressive scheduling that compresses the time to trial. A consent judgment at 232 days — well before a typical Markman or trial date — suggests both sides calculated that agreed resolution was preferable to contested litigation costs and scheduling risk in this venue.

MIMO channel estimation and synchronization patents remain assertable assets

All three asserted patents survived long enough to reach a consent judgment against Qualcomm — a defendant with substantial IPR and invalidity resources. Companies relying on MIMO multi-antenna technologies in 4G/5G chipsets, routers, or base stations should assess their exposure to this patent family and adjacent filings by American Patents LLC.

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Portfolio depth analysisRelated family risk mapLicensing posture signals
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Frequently asked questions

American v Qualcomm — key questions answered

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Monitor MIMO wireless patent enforcement and FTO risk

Use PatSnap Eureka to track American Patents LLC's full MIMO patent portfolio, monitor new assertions, and run freedom-to-operate searches against the patents asserted in this case. Stay ahead of enforcement risk in the 4G/5G wireless technology space.

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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