notice Published 2026-07-24

Certain Anode Materials for Use in Battery Cells and Batteries; Notice of Institution of Investigation

📌 ETDETA brief — importer impact summary (educational)

Brief takeaway: The ITC has opened a Section 337 patent investigation into certain imported anode materials for battery cells and batteries, which could eventually lead to import restrictions.

What changed: According to the notice, a complaint was filed on June 18, 2026, on behalf of Sila Nanotechnologies, Inc. and Georgia Tech Research Corporation, alleging that the importation and sale of certain anode materials infringe claims of four U.S. patents (the '528, '825, '215, and '624 patents). The notice states the complainants request a limited exclusion order and cease and desist orders, and that the Commission has instituted an investigation.

Who's affected: The notice names certain anode materials for use in battery cells and batteries. It does not specify HTS codes or countries of origin. The notice cites four patents as the basis for the alleged Section 337 violations.

What to review:
- Review whether your imported battery anode materials, cells, or batteries could fall within the described product category.
- Confirm with your broker or trade counsel whether the named patents may be relevant to your suppliers' products.
- Check whether any of your suppliers or their products are potentially subject to this investigation.
- Review the docket for developments, since a limited exclusion order or cease and desist orders are being requested.

This is general information, not legal advice and not a compliance determination — confirm specifics with a licensed customs broker or trade counsel.

Official notice

Notice is hereby given that a complaint was filed with the U.S. International Trade Commission on June 18, 2026, under section 337 of the Tariff Act of 1930, as amended, on behalf of Sila Nanotechnologies, Inc. of Alameda, California, and Georgia Tech Research Corporation of Atlanta, Georgia. The complaint 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 anode materials for use in battery cells and batteries by reason of the infringement of certain claims of U.S. Patent No. 11,515,528 ("the '528 patent"); U.S. Patent No. 11,715,825 ("the '825 patent"); U.S. Patent No. 11,374,215 ("the '215 patent"); and U.S. Patent No. 11,942,624 ("the '624 patent"). The complaint further alleges that an industry in the United States exists as required by the applicable Federal Statute. The complainants request that the Commission institute an investigation and, after the investigation, issue a limited exclusion order and cease and desist orders.

Source: Federal Register · International Trade Commission · Read the official notice ↗

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This update is a general educational summary based on public CBP CSMS / Federal Register information. It is not legal advice, customs broker advice, a final classification, duty determination, entry instruction, or compliance determination. Importers should confirm applicability, effective dates, HTSUS/Chapter 99 reporting, rates, refunds, PSC procedures, and filing instructions with their licensed customs broker, trade counsel, and/or CBP.