The USITC has instituted a Section 337 investigation on a complaint filed by MonolithIC 3D Inc. (Allen, TX) alleging that imported NAND and DRAM memory chips infringe eight US patents covering 3D memory architecture. The Commission will determine whether a violation exists and, if so, may issue a limited exclusion order and cease-and-desist orders barring infringing imports. The action was filed February 17, 2026, with the investigation formally instituted March 30, 2026.

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Review Snapshot

Scope: HS 85 / Section 337
Question: Does this source change alter exposure, timing, or review priority for HS 85 / Section 337?
Next move: Check HS 85 in Tariffs, then save the scope if this question repeats.

Legal / Policy Context

Policy instruments

Section 337

Practical Takeaways

Check the tagged HS codes in tariff context before treating this as a general market signal.
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Source Trail

USITCPrimary briefing source

Open source