MOSAID Technologies v. MediaTek: 7-Patent SoC Dispute Settled in E.D. Texas
MOSAID Technologies asserted seven semiconductor patents against MediaTek’s MT-series SoC products in the Eastern District of Texas. After 645 days of litigation, the parties resolved their dispute and jointly stipulated to dismissal with prejudice — a resolution that suggests a confidential licensing agreement was reached.
MOSAID’s Seven-Patent SoC Campaign Ends in Negotiated Resolution
Filed on March 28, 2023 in the Eastern District of Texas, MOSAID Technologies, Inc. brought an infringement action against MediaTek, Inc. and its U.S. subsidiary MediaTek USA, Inc. MOSAID asserted seven U.S. patents spanning semiconductor circuit design, memory interfacing, and SoC integration technology. The accused products were MediaTek’s MT6755, MT6797, MT6853, and MT6983 chipsets — widely deployed across Android mobile devices globally.
The case closed on January 1, 2025 via a Joint Stipulation of Dismissal filed under Federal Rule of Civil Procedure 41(a)(1)(A)(ii). The court accepted the stipulation and ordered all claims dismissed with prejudice. Critically, the court retained jurisdiction to enforce a December 19, 2024 agreement between the parties — strongly suggesting a private licensing or settlement agreement was executed just days before the stipulation was filed.
At 645 days, the case ran longer than many E.D. Texas matters that resolve early, suggesting substantive claim construction and discovery proceedings preceded the resolution. The symmetric cost-bearing provision — each side paying its own fees — is consistent with a negotiated outcome rather than a capitulation. The specific financial terms of the December 19, 2024 agreement remain confidential and are not available from the public record.
Filing to Dismissed with Prejudice in 645 days
645 days — above the median for E.D. Texas patent cases that settle pre-trial
Dismissed with prejudice: what the stipulated resolution means for both parties
Rule 41(a)(1)(A)(ii) dismissal with prejudice explained
A stipulated dismissal under Rule 41(a)(1)(A)(ii) requires both parties’ consent and, when entered with prejudice, permanently extinguishes all asserted claims. MOSAID cannot re-file these specific claims against MediaTek on the same patents. The court’s retention of jurisdiction to enforce the December 19, 2024 agreement is a standard mechanism to give teeth to an underlying settlement without making its terms part of the public record.
Bilateral consent dismissalMOSAID secures a binding resolution — likely with licensing value
Dismissal with prejudice on plaintiff’s initiative, coupled with court-retained enforcement jurisdiction over a separately executed agreement, is the hallmark of a successfully negotiated license. MOSAID’s seven-patent portfolio remains intact and fully enforceable against third parties. The resolution does not constitute any admission by MediaTek of infringement or patent validity, but it does confirm MOSAID extracted sufficient value to justify discontinuing litigation.
Portfolio remains enforceableMediaTek resolves exposure across four SoC product lines
MediaTek achieves certainty on litigation risk for the MT6755, MT6797, MT6853, and MT6983 product families. The with-prejudice dismissal bars MOSAID from reasserting the same claims in this jurisdiction. The symmetric fee arrangement suggests neither side achieved a decisive litigation win — consistent with a commercial compromise. MediaTek’s design pipeline for successor chipsets may still warrant FTO analysis against MOSAID’s broader portfolio.
Accused products clearedMOSAID’s SoC licensing posture remains active and credible
MOSAID’s willingness to litigate for 645 days across seven patents before settling signals a disciplined monetisation strategy rather than early capitulation. Other SoC vendors shipping products with similar semiconductor architectures — particularly memory interface and mixed-signal integration — should treat MOSAID as an active licensing counterparty. The Eastern District of Texas venue choice reinforces MOSAID’s enforcement credibility for future assertions.
Active licensing risk sector-wideFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | MOSAID Technologies, Inc. | Company | Patent licensing entity — holder of US7224563B2 and 6 further semiconductor patentsSearch in Eureka ↗ |
| Defendant | Mediatek, Inc. | Company | MediaTek, Inc. and MediaTek USA, Inc. — global fabless semiconductor and SoC designerSearch in Eureka ↗ |
| Co-Defendant | MediaTek USA, Inc. | Company | Search in Eureka ↗ |
| Plaintiff counsel | Andrea Leigh Fair | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Andrew J. Strabone | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Anthony Q. Rowles | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Austin C. Teng | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Charles Everingham, IV | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Cody MacJackson Carter | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff counsel | David Higer | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Hardeman Grant Tucker | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Jamie H. McDole | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Jason G. Sheasby | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Kenneth H. Bridges | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Matthew Lawrence Vitale | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Michael Daley Karson | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Miranda Yan Jones | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Nadia Elena Haghighatian | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Phillip Brett Philbin | Attorney | Counsel for MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Bridges IP Consulting | Law Firm | Representing MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Irell & Manella LLP (Los Angeles) | Law Firm | Representing MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Miller Fair Henry PLLC | Law Firm | Representing MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Winstead PC | Law Firm | Representing MOSAID Technologies, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Winstead PC(Dallas) | Law Firm | Representing MOSAID Technologies, Inc.Search in Eureka ↗ |
| Defendant counsel | Andrew Thompson (Tom) Gorham | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Chet Donald Campbell | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Irene Hwang | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Jared Hartzman | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Jeffrey Mok | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Joseph V. Colaianni , Jr. | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Karrie E. Washenfe Wheatley | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Kevin P.B. Johnson | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Lance Lin Yang | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Linhong Zhang | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Matthew Mosteller | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Melissa Richards Smith | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Nicholas Wang | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Ralph A. Phillips | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Richard Walter Erwine | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Robert Scheffel | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Ruffin B. Cordell | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Timothy John Rawson | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant counsel | Zachariah Summers | Attorney | Counsel for Mediatek, Inc.Search in Eureka ↗ |
| Defendant law firm | Dowd Scheffel PLLC | Law Firm | Representing Mediatek, Inc.Search in Eureka ↗ |
| Defendant law firm | Fish & Richardson – Jeff Mok | Law Firm | Representing Mediatek, Inc.Search in Eureka ↗ |
| Defendant law firm | Fish & Richardson PC | Law Firm | Representing Mediatek, Inc.Search in Eureka ↗ |
| Defendant law firm | Fish & Richardson PC (Boston) | Law Firm | Representing Mediatek, Inc.Search in Eureka ↗ |
| Defendant law firm | Fish & Richardson PC (Houston) | Law Firm | Representing Mediatek, Inc.Search in Eureka ↗ |
| Defendant law firm | Fish & Richardson PC – San Diego | Law Firm | Representing Mediatek, Inc.Search in Eureka ↗ |
| Defendant law firm | Fish & Richardson PC (Washington DC) | Law Firm | Representing Mediatek, Inc.Search in Eureka ↗ |
| Defendant law firm | Gillam & Smith LLP | Law Firm | Representing Mediatek, Inc.Search in Eureka ↗ |
| Defendant law firm | Gillam & Smith, LLP | Law Firm | Representing Mediatek, Inc.Search in Eureka ↗ |
| Defendant law firm | Quinn Emanuel Urquhart & Sullivan, LLP (Redwood) | Law Firm | Representing Mediatek, Inc.Search in Eureka ↗ |
| Defendant law firm | Quinn Emanuel Urquhart & Sullivan LLP (LA) | Law Firm | Representing Mediatek, Inc.Search in Eureka ↗ |
| Defendant law firm | Quinn Emanuel Urquhart & Sullivan LLP (NY) | Law Firm | Representing Mediatek, Inc.Search in Eureka ↗ |
| Defendant law firm | Quinn Emanuel Urquhart & Sullivan LLP | Law Firm | Representing Mediatek, Inc.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order accepts a joint stipulation under Rule 41(a)(1)(A)(ii), confirming bilateral consent to a with-prejudice dismissal. The operative phrase — ‘the above-captioned case has been resolved’ — is deliberately broad, avoiding any admission of infringement or validity. The court’s retention of jurisdiction solely to enforce the December 19, 2024 agreement is the legally significant clause: it transforms the court into a potential future enforcement forum for the underlying deal’s terms, giving whichever party holds performance obligations a rapid path back to judicial relief without filing a new action.
US7224563B2 and six further patents — semiconductor SoC and memory interface technology
The seven asserted patents — US7224563B2, US8854077B2, US7945885B2, US9350349B2, US7051306B2, US8253438B2, and US7996811B2 — span semiconductor circuit design disciplines including SoC architecture, memory interfacing, mixed-signal integration, and peripheral bus control. Application dates range from the mid-2000s through the early 2010s, covering technology generations directly relevant to the mobile SoC era. MOSAID, operating as a patent monetisation entity, assembled this portfolio to target the high-volume mobile chipset market.
The accused MediaTek products — MT6755, MT6797, MT6853, and MT6983 — are mass-market mobile SoC platforms shipped in hundreds of millions of devices annually. Asserting seven patents across these product families creates broad claim coverage that is difficult to design around without architectural changes. For other fabless SoC designers shipping products with similar memory bus topologies, interface circuits, or power management architectures, this portfolio represents a credible and active licensing risk that warrants proactive FTO analysis.
Should you run an FTO analysis against MOSAID’s SoC patent portfolio?
Any fabless semiconductor company, ODM, or mobile device OEM integrating MediaTek-comparable SoC architectures — particularly those incorporating multi-protocol memory interfaces, mixed-signal peripheral controllers, or dynamic power management circuits — should assess exposure against MOSAID’s active patent families. MOSAID’s demonstrated willingness to litigate in E.D. Texas for nearly two years before settling signals a credible and sustained enforcement posture.
PatSnap Eureka’s FTO Search Agent can map your product’s technical architecture against the claim scope of all seven MOSAID patents, identify relevant prosecution history estoppel, and flag pending continuations that could extend coverage into next-generation designs. Eureka’s portfolio monitoring tools also alert you if MOSAID files new assertions or acquires adjacent semiconductor IP — giving your IP team and R&D leaders advance notice before litigation is filed.
Run a freedom-to-operate analysis on US7224563B2 to assess your product’s exposure
Run FTO in Eureka →Similar semiconductor patent disputes in E.D. Texas
Related SoC and semiconductor patent infringement cases filed in the Eastern District of Texas involving mobile chipset and memory interface technology.
What this case signals for the semiconductor SoC IP licensing landscape
MOSAID’s seven-patent, multi-product campaign against MediaTek offers a clear signal about licensing strategy and risk tolerance in the SoC space.
E.D. Texas remains a preferred venue for semiconductor patent plaintiffs
MOSAID’s choice of the Eastern District of Texas — and the court’s acceptance of the case through to a negotiated resolution — reinforces the district’s continued attractiveness for patent monetisation campaigns. SoC vendors with U.S. operations should ensure their litigation readiness is calibrated to this venue’s procedural pace and local patent rules.
Multi-patent semiconductor assertions compress defendant negotiating leverage
Asserting seven patents across four product lines materially increases the cost and complexity of defence. MediaTek deployed counsel from Fish & Richardson, Quinn Emanuel, and Gillam & Smith simultaneously — a resource commitment that suggests the assertion was taken seriously. Companies in MOSAID’s target zone should assess portfolio exposure before disputes are filed.
MOSAID v Mediatek — key questions answered
MOSAID asserted seven U.S. patents: US7224563B2, US8854077B2, US7945885B2, US9350349B2, US7051306B2, US8253438B2, and US7996811B2. The patents cover semiconductor SoC design, memory interface technology, and related circuit disciplines, and were asserted against MediaTek’s MT6755, MT6797, MT6853, and MT6983 chipset products.
The case was dismissed with prejudice pursuant to a joint stipulation under Rule 41(a)(1)(A)(ii), meaning both parties agreed to the dismissal. The court’s verdict states the ‘case has been resolved,’ and the court retained jurisdiction to enforce a December 19, 2024 agreement — strongly suggesting the parties reached a private settlement or licensing agreement before filing the stipulation.
When a court retains jurisdiction solely to enforce a settlement agreement, it means either party can return to that court for enforcement relief without filing a new lawsuit. In this case, the court retained jurisdiction over the December 19, 2024 agreement specifically. This is typically used where the settlement includes ongoing obligations such as royalty payments, product restrictions, or milestone requirements.
MOSAID accused four MediaTek SoC product lines: the MT6755, MT6797, MT6853, and MT6983. These are mobile system-on-chip platforms used in a wide range of Android smartphones and consumer electronics, making them high-volume commercial targets for a patent licensing assertion of this type.
The dismissal only bars MOSAID from re-asserting these specific claims against MediaTek. MOSAID retains the right to assert the same seven patents — and any other patents in its portfolio — against other SoC vendors, chipset manufacturers, or device OEMs. Other companies shipping products with comparable semiconductor architectures remain exposed to potential assertion by MOSAID.
PatSnap Eureka searches patents and litigation data to answer instantly.