On June 15, 2026, the U.S. International Trade Commission published notice that it has instituted Investigation No. 337-TA-1506, a Section 337 proceeding over Certain NAND and DRAM Memory Chips and Products Containing the Same. For the memory-supply business, this is the kind of filing that rarely makes a headline but can reshape import economics overnight: a Section 337 investigation does not award damages, it asks whether infringing goods should be barred from entering the United States at all. The complaint was filed by MonolithIC 3D Inc. of Allen, Texas, and the requested remedy is an exclusion order. That is the fact that matters, and it is the reason any company that ships NAND or DRAM into the U.S. should read the docket rather than the press summary.
The procedural record is specific. According to the Commission's notice, the complaint was filed on May 11, 2026, then supplemented twice before institution. The complaint asserts five separate U.S. patents — No. 12,250,830, No. 12,362,330, No. 12,400,961, No. 12,464,734, and No. 12,564,006 — and alleges that imported memory chips and downstream products containing them infringe certain claims of each. The legal hook is the classic Section 337 import nexus: importation, sale for importation, and post-importation sale within the United States. The ITC takes its statutory cue directly from the Tariff Act of 1930.
"The complaint, as supplemented, alleges violations of section 337 based upon the importation into the United States, the sale for importation, and the sale within the United States after importation of certain NAND and DRAM memory chips and products containing the same by reason of the infringement of certain claims of U.S. Patent No. 12,250,830 (“the ’830 patent”); U.S. Patent No. 12,362,330 (“the ’330 patent”); U.S. Patent No. 12,400,961 (“the ’961 patent”); U.S. Patent No. 12,464,734 (“the ’734 patent”); and U.S. Patent No. 12,564,006 (“the ’006 patent”)."— Federal Register, source
Why an exclusion order is the business-relevant variable
The reason Section 337 cases register differently from ordinary district-court patent suits is the remedy structure. The complainant here has explicitly asked the Commission, per the notice, to institute an investigation and, after the investigation, issue a limited exclusion order and cease-and-desist orders. A limited exclusion order, if entered, instructs U.S. Customs and Border Protection to stop infringing articles from the named respondents at the port. Cease-and-desist orders reach inventory already inside the country. For a category as fungible and as deeply embedded in finished electronics as NAND and DRAM, an exclusion order does not stop at the memory die — it can reach “products containing the same,” which is the language in the caption itself. That phrase is why downstream OEMs, not just memory makers, watch these dockets.
The other procedural feature worth flagging for risk teams is speed. Section 337 investigations run on a target schedule measured in roughly 16 to 18 months from institution to final determination, far faster than typical multi-year patent litigation. Institution does not mean infringement has been found — it means the Commission has decided the complaint clears the threshold to open a proceeding. But the compressed timeline means respondents have to mount a full validity-and-non-infringement defense, plus a domestic-industry challenge, on an accelerated clock. That cost asymmetry is part of the leverage that makes the venue attractive to complainants.
The domestic-industry requirement is the quiet battleground
Section 337 relief is not available to every patent holder. The statute requires that an industry in the United States exists or is in the process of being established with respect to the asserted patents — the so-called domestic-industry requirement. The Commission's notice states that the complaint alleges exactly this. For a patent-centric complainant, the domestic-industry showing is frequently the most contested element of the case, because it turns on documented U.S. investment in plant, labor, or licensing tied to the specific patents. Respondents routinely attack it, and a failure on that prong can end an investigation regardless of the infringement merits. Anyone modeling the probability that an exclusion order actually issues should weight the domestic-industry question heavily.
It is also worth being precise about what we do not yet know from this record. The notice of institution does not name the respondents in the abstract we reviewed, does not adjudicate validity, and does not assess the strength of the five asserted patents. Those determinations belong to the investigation itself, which will proceed before an administrative law judge before any Commission-level review. The published notice is procedural: a complaint was filed, supplemented, and accepted for institution under docket 337-TA-1506, citation 91 FR 35999.
What the record shows
Read straight from the Federal Register, the takeaways are narrow but concrete. First, there is a live ITC investigation over NAND and DRAM memory chips as of June 15, 2026, and it is keyed to five identified U.S. patents. Second, the requested remedy is a border exclusion order plus cease-and-desist orders, not damages — meaning the commercial exposure is to import access, not just to a money judgment. Third, the complainant has invoked the domestic-industry requirement, which becomes a central evidentiary fight. For the memory supply chain, the practical instruction is to treat the patent numbers as the index: any importer or OEM whose products read on those claims now has a defined regulatory risk with a defined venue and a defined remedy on the table.
The broader signal is that the ITC remains an active front in semiconductor IP disputes, and memory — the most commoditized layer of the chip stack — is no exception. When the contested article is a component that ships inside nearly every electronic device, the reach of “products containing the same” is what converts a single patent complaint into a supply-chain-wide variable. The docket, not the summary, is where that exposure is quantified, and 337-TA-1506 is now open.