MimirIP LLC v. Acer, Inc. — ITC Complaint Withdrawn After 88 Days
MimirIP LLC filed a Section 337 infringement complaint at the US International Trade Commission against Acer, asserting three semiconductor memory patents. The complaint was withdrawn just 88 days after filing, closing the investigation before any merits ruling.
ITC Section 337 complaint over memory chip patents ends before merits
On 8 July 2024, MimirIP LLC — a patent assertion entity holding at least three US semiconductor memory patents — filed an infringement complaint at the United States International Trade Commission (ITC) against Acer, Inc. under Section 337 of the Tariff Act. The three patents in suit cover a method of manufacturing a semiconductor device (US9245962B1), a nonvolatile memory device (US10896918B1), and a semiconductor memory device and manufacturing method (US8637919B2). ITC proceedings were assigned to Administrative Law Judge Cameron Elliot.
The investigation closed on 4 October 2024, just 88 days after filing, when MimirIP withdrew its complaint. The ITC terminated the investigation on the basis of case withdrawal, with no finding on the merits, no Section 337 violation determination, and no exclusion order or cease-and-desist order issued against Acer. A withdrawal at this stage is procedurally distinct from a dismissal with or without prejudice in district court and carries specific implications for future enforcement.
The 88-day duration is notably short for an ITC proceeding, where investigations typically run 12–18 months through to an initial determination. The rapid withdrawal suggests the parties may have reached a confidential commercial resolution, or that MimirIP reassessed its enforcement strategy early in the pre-hearing phase. The public record does not disclose any settlement terms, licensing agreement, or the specific reason MimirIP chose to withdraw rather than pursue the complaint to a determination.
Filing to Case Withdrawn in 88 days
88 days — resolved faster than most ITC investigations, which average 15–18 months
Complaint withdrawn: what case termination means for both parties
ITC complaint withdrawal ends investigation without a merits ruling
A withdrawn ITC complaint terminates the Section 337 investigation procedurally rather than on the merits. The Commission issues no violation finding, no exclusion order, and no cease-and-desist order. Unlike a district court dismissal, the ITC framework does not formally distinguish ‘with’ or ‘without prejudice’ — the withdrawal simply ends the investigation. MimirIP retains the patents and may, in principle, pursue enforcement in other forums.
No merits determinationMimirIP exits without a ruling — enforcement options remain open
Because the investigation terminated on withdrawal rather than an adverse finding, MimirIP’s three semiconductor memory patents have not been adjudicated as valid, invalid, infringed, or not infringed. MimirIP retains the ability to assert these patents in US district court or at the ITC in a future complaint. However, any future ITC filing on the same patents would face heightened scrutiny and potential procedural challenges from respondents.
Patents remain assertableAcer avoids an exclusion order but gains no invalidity shield
Acer exits without an exclusion order or cease-and-desist order against its products, which is a commercially significant result. However, Acer has not secured a finding of non-infringement or invalidity for the three asserted patents. The withdrawal does not constitute an estoppel or collateral estoppel bar against MimirIP re-asserting these patents. Acer should treat its semiconductor product lines as still exposed until the patents expire or are invalidated through IPR or litigation.
No exclusion order issuedEarly withdrawal suggests pre-hearing leverage — or a quiet settlement
ITC proceedings are a high-stakes tool because an exclusion order bars importation of infringing goods. A complaint withdrawn within 88 days — before the evidentiary hearing phase — typically signals either a licensing arrangement reached under the threat of exclusion, or a strategic withdrawal after early case assessment. For the semiconductor memory sector, this pattern of early ITC filing followed by rapid resolution is consistent with NPE licensing campaigns targeting hardware OEMs who import products into the US market.
Likely commercial resolutionFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | MimirIP LLC | Company | Patent assertion entity — holder of US9245962B1, US10896918B1, and US8637919B2Search in Eureka ↗ |
| Defendant | Acer, Inc. | Company | Acer, Inc. — multinational consumer electronics and computer hardware manufacturerSearch in Eureka ↗ |
| Plaintiff counsel | Bert C. Reiser | Attorney | Counsel for MimirIP LLCSearch in Eureka ↗ |
| Plaintiff law firm | Latham & Watkins LLP | Law Firm | Representing MimirIP LLCSearch in Eureka ↗ |
| Defendant counsel | Timothy W. Riffe | Attorney | Counsel for Acer, Inc.Search in Eureka ↗ |
| Defendant law firm | Fish & Richardson PC | Law Firm | Representing Acer, Inc.Search in Eureka ↗ |
| Presiding judge | Judge Cameron Elliot | Judge | United States International Trade CommissionSearch in Eureka ↗ |
Official order — verbatim text
The termination record states ‘Complaint Withdrawn’ as the participant disposition, with ‘Case Withdrawn’ as the basis of termination. This phrasing confirms a voluntary, unilateral withdrawal by MimirIP rather than a joint stipulation or Commission-initiated termination. No Section 337 violation was determined, meaning no exclusion order, limited exclusion order, or cease-and-desist order was issued. The absence of any merits finding leaves the legal status of all three asserted patents unchanged — a tactically neutral outcome that preserves optionality for MimirIP and provides Acer no formal legal shield.
US9245962B1, US10896918B1 & US8637919B2 — Semiconductor Memory Patents
The three patents asserted by MimirIP span semiconductor memory device architectures and their manufacturing methods. US9245962B1 (App. No. 14/600985) covers a method of manufacturing a semiconductor device. US10896918B1 (App. No. 16/723460) covers a nonvolatile memory device. US8637919B2 (App. No. 13/310329) covers a semiconductor memory device and its manufacturing method. Together, these patents span both device architecture and fabrication process claims — a combination that broadens potential infringement exposure across product design and production workflow.
In the semiconductor memory sector, patents covering both device structure and manufacturing process are strategically valuable because they can implicate multiple points in a supply chain — from foundry to OEM. MimirIP’s assertion against Acer, a major importer of computing hardware, suggests the patents may read on components used in consumer electronics products. For companies designing, sourcing, or importing products incorporating NAND flash, NOR flash, or embedded nonvolatile memory, these patents represent a live landscape risk that warrants monitoring through patent expiry.
Should your team run an FTO against US9245962B1, US10896918B1 & US8637919B2?
Any company designing, manufacturing, or importing semiconductor memory devices — including products incorporating nonvolatile memory components — should assess exposure to these three patents. The ITC withdrawal means no claim construction or validity ruling exists to guide design-around analysis. Hardware OEMs, memory module vendors, and electronics importers with US market exposure face the most immediate risk, particularly if their products are imported into the United States.
PatSnap Eureka’s FTO Search Agent allows IP and R&D teams to run structured freedom-to-operate searches against all three patent numbers simultaneously, mapping independent claims to product features and flagging design-around opportunities. Because the patents span both device architecture and manufacturing process claims, Eureka can segment the analysis by claim type — helping teams prioritise which claims pose the highest commercial exposure before product launch or supply chain decisions.
Run a freedom-to-operate analysis on US9245962B1 to assess your product’s exposure
Run FTO in Eureka →Similar ITC Section 337 semiconductor memory patent cases
Explore comparable Section 337 investigations at the USITC involving semiconductor memory device and nonvolatile memory patents asserted by NPEs against hardware OEMs.
What this case signals for the semiconductor memory IP landscape
The rapid withdrawal of an ITC Section 337 complaint over semiconductor memory patents carries tactical lessons for hardware OEMs and IP teams.
ITC filings remain a potent opening move for patent assertion entities
MimirIP’s choice of the ITC over district court reflects a deliberate strategy: the threat of import exclusion compresses settlement timelines. Hardware OEMs importing semiconductor-based products into the US market face asymmetric risk when an ITC complaint is filed. The 88-day resolution here is consistent with a licensing-driven campaign rather than a sustained litigation effort.
Withdrawal without a ruling preserves patent value — and future threat
Because no merits determination was issued, US9245962B1, US10896918B1, and US8637919B2 remain untested before a tribunal. This preserves MimirIP’s ability to assert these patents against other companies or to refile against Acer if any licensing arrangement breaks down. Competitors operating in the nonvolatile memory device and semiconductor manufacturing space should treat these patents as live enforcement assets.
MimirIP v Acer — key questions answered
MimirIP LLC filed an ITC Section 337 infringement complaint against Acer, Inc. on 8 July 2024, asserting three semiconductor memory patents. The complaint was withdrawn on 4 October 2024 — just 88 days after filing — without any merits determination, exclusion order, or cease-and-desist order being issued.
MimirIP asserted three US patents: US9245962B1 (method of manufacturing a semiconductor device), US10896918B1 (nonvolatile memory device), and US8637919B2 (semiconductor memory device and manufacturing method). All three relate to semiconductor memory device architecture and fabrication processes.
No. A complaint withdrawal at the ITC does not constitute a finding of non-infringement or invalidity. The investigation was terminated procedurally before any merits ruling. Acer received no formal legal protection against future assertion of the same patents by MimirIP in other forums.
Yes. Because the ITC investigation was terminated on withdrawal without a merits finding, MimirIP retains the right to assert US9245962B1, US10896918B1, and US8637919B2 against Acer or other parties in US district court or in a future ITC complaint, subject to applicable statutes of limitations and procedural rules.
The ITC can issue exclusion orders barring importation of infringing goods into the US market — a remedy that is particularly effective against hardware OEMs that manufacture abroad and import finished products. Unlike district court damages, exclusion orders directly disrupt market access, creating strong commercial pressure to license or settle before a hearing on the merits.
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