InnoMemory v. Winbond: Memory Refresh Patent Suit Dismissed With Prejudice
InnoMemory, LLC asserted US7057960B1 — a patent covering power-saving architectures for DRAM refresh operations — against Winbond in the Eastern District of Texas. The plaintiff voluntarily dismissed the case with prejudice just 156 days after filing, permanently foreclosing re-assertion of those claims.
Memory IP assertion against Winbond ends permanently after five months
On 8 July 2024, InnoMemory, LLC filed a patent infringement action against Winbond in the United States District Court for the Eastern District of Texas (Case No. 2:24-cv-00497). The complaint asserted US7057960B1, which covers a method and architecture for reducing power consumption in memory devices during refresh operations — a technically and commercially significant area for DRAM and NOR flash suppliers such as Winbond.
On 11 December 2024, InnoMemory filed a Notice of Voluntary Dismissal expressly stating that the case was dismissed WITH PREJUDICE. The Court accepted the notice pursuant to Federal Rule of Civil Procedure 41(a)(1)(A)(i), formally closing the case. A dismissal with prejudice carries significant legal weight: it operates as a final adjudication on the merits, meaning InnoMemory is permanently barred from reasserting the same patent claims against Winbond based on the same conduct.
The 156-day duration suggests the matter concluded before any substantive court ruling — no claim construction, no merits briefing, and no fee award appears on the public docket. The with-prejudice designation is notably stronger than a standard voluntary dismissal, suggesting the parties may have reached a resolution — whether a licensing agreement, covenant not to sue, or simply a strategic decision to abandon the action — the terms of which remain confidential and are not reflected in the public record.
Filing to Voluntary dismissal in 156 days
156 days — resolved well below the E.D. Texas median for patent cases
Dismissed with prejudice: what the ruling means for both parties
Rule 41(a)(1)(A)(i) dismissal with prejudice explained
Under FRCP 41(a)(1)(A)(i), a plaintiff may voluntarily dismiss a case before the defendant has served an answer or a motion for summary judgment. When filed with prejudice — as here — the dismissal functions as a final judgment on the merits. The court accepted and acknowledged the notice, directed closure, and denied all other pending relief as moot. No judicial merits ruling was issued.
Permanent bar on re-litigationThe with-prejudice designation matters more than it appears
A voluntary dismissal without prejudice leaves the door open to refile. With prejudice does not. InnoMemory’s own notice specified ‘WITH PREJUDICE,’ which the court formally adopted. The public record does not disclose why the plaintiff elected this stronger designation — a licensing payment, a covenant not to sue, or a unilateral strategic decision are all consistent with the record. The distinction is legally irreversible for claims against Winbond arising from the same conduct.
No refiling permittedWinbond exits with permanent immunity from these claims
Winbond — represented by no counsel on the public docket at the time of dismissal — achieves a commercially valuable outcome: permanent protection from InnoMemory’s US7057960B1 claims based on the accused conduct. Whether this reflects a negotiated resolution or Winbond’s resistance is unknown, but the with-prejudice bar is the strongest dismissal protection a defendant can receive short of a full invalidity ruling.
Claims extinguishedMemory sector IP risk: what other manufacturers should note
US7057960B1 remains a live patent asset. The dismissal with prejudice binds only InnoMemory’s claims against Winbond for the conduct at issue — it does not invalidate the patent or prevent assertion against other memory device manufacturers. Companies producing DRAM, NOR flash, or low-power embedded memory products with refresh-cycle power optimisation features should assess their exposure to this patent independently.
Patent still enforceable vs. othersFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | InnoMemory, LLC | Company | Patent assertion entity — holder of US7057960B1 covering memory refresh power reductionSearch in Eureka ↗ |
| Defendant | Winbond | Individual | Winbond — semiconductor manufacturer specialising in memory products including NOR flash and DRAMSearch in Eureka ↗ |
| Plaintiff counsel | Isaac Phillip Rabicoff | Attorney | Counsel for InnoMemory, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Rabicoff Law LLC | Law Firm | Representing InnoMemory, LLCSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order is purely procedural — it accepts and acknowledges InnoMemory’s own notice under Rule 41(a)(1)(A)(i) and issues no substantive findings on infringement, validity, or claim scope. The operative legal effect flows entirely from the plaintiff’s with-prejudice designation: all pending claims are extinguished as a matter of final adjudication. The denial of all other relief ‘as moot’ confirms no interim rulings survived closure. Neither party received a merits ruling on US7057960B1.
US7057960B1 — Power-reduction architecture for memory device refresh operations
US7057960B1 (application number US10/629667) covers a method and architecture designed to reduce power consumption specifically during refresh operations in memory devices. Refresh cycles are a significant and unavoidable source of power draw in volatile memory architectures such as DRAM — the patent addresses how those cycles can be managed or restructured to lower overall energy consumption, a consideration critical in mobile, embedded, and high-density memory applications.
From a competitive intelligence standpoint, power-efficient refresh is a core differentiator in the semiconductor memory market, particularly as LPDDR and low-power NOR flash variants compete for mobile and IoT design wins. A patent covering architectural methods for refresh-cycle optimisation sits squarely across the product roadmaps of major memory vendors. Its assertion against Winbond — a significant NOR flash and specialty DRAM supplier — signals that InnoMemory views the patent as broadly applicable to commercially shipping memory architectures.
Should your team run an FTO against US7057960B1?
If your organisation designs, manufactures, or integrates memory devices — particularly DRAM, LPDDR, NOR flash, or embedded SRAM — with any form of refresh-cycle power management or optimisation, US7057960B1 warrants formal FTO review. The InnoMemory v. Winbond action confirms the patent is being actively asserted against shipping commercial products. The dismissal with prejudice clears Winbond only — other manufacturers and their customers remain exposed.
PatSnap Eureka’s FTO Search Agent enables R&D and IP teams to map US7057960B1’s claim scope against your specific memory architecture, identify prior art that may affect validity, and benchmark against the patent’s prosecution history. Eureka surfaces related family members and co-assigned patents that may represent further assertion vectors from the same portfolio — giving you a complete picture before a notice letter arrives.
Run a freedom-to-operate analysis on US7057960B1 to assess your product’s exposure
Run FTO in Eureka →Similar memory patent infringement cases in E.D. Texas
Explore comparable semiconductor memory patent infringement actions filed in the Eastern District of Texas, including DRAM and flash IP assertion cases.
What this case signals for the memory semiconductor IP landscape
A swift with-prejudice exit in E.D. Texas typically signals a negotiated resolution or a calculated enforcement pivot — rarely an admission of weakness.
Early dismissals in E.D. Texas often precede licensing activity
When a plaintiff voluntarily dismisses with prejudice before any defendant filing, the most commercially plausible explanation is a settlement or licence. InnoMemory’s 156-day timeline — filing to closure — is consistent with an early negotiated resolution rather than litigation failure. Memory IP portfolio holders frequently use a single filed case to catalyse licensing conversations across multiple targets.
US7057960B1 remains an active enforcement risk for memory manufacturers
The with-prejudice dismissal extinguishes only InnoMemory’s claims against Winbond. The patent covering power-reduction methods for memory refresh operations is not invalidated. Any company in the DRAM, NOR flash, or embedded memory space with refresh-optimisation features in its products should treat this patent as an ongoing FTO consideration.
InnoMemory v Winbond — key questions answered
A dismissal with prejudice under FRCP 41(a)(1)(A)(i) operates as a final adjudication on the merits. InnoMemory is permanently barred from reasserting the same US7057960B1 claims against Winbond based on the same accused conduct. The patent itself is not invalidated and remains enforceable against third parties.
US7057960B1 covers a method and architecture for reducing power consumption during memory device refresh operations — a fundamental process in volatile memory such as DRAM. Winbond is a leading manufacturer of NOR flash and specialty memory products, making it a plausible target for a patent asserting broad refresh-optimisation claims across commercial memory architectures.
No. The with-prejudice dismissal binds only InnoMemory’s claims against Winbond for the specific conduct at issue. Other memory device manufacturers — and potentially Winbond’s downstream customers — remain independently exposed to assertion of US7057960B1. Companies with refresh-cycle power management in their memory products should conduct independent FTO analysis.
The public record does not disclose the reason. The three most commercially plausible explanations are: (1) a negotiated licence or settlement with confidential terms, (2) a covenant not to sue, or (3) a unilateral strategic decision to abandon the claim. The 156-day timeline and pre-answer filing stage are consistent with an early resolution rather than a litigation failure on the merits.
The case was filed in the United States District Court for the Eastern District of Texas (Case No. 2:24-cv-00497). E.D. Texas has historically been a preferred venue for patent assertion entities due to its established patent litigation docket, jury-friendly reputation, and procedural familiarity among plaintiff-side patent counsel. It remains one of the most active patent litigation venues in the United States.
PatSnap Eureka searches patents and litigation data to answer instantly.