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ITCJune 11, 2026·337-TA-1507·SUPPLEMENTAL COMPLAINT FILED

Certain Heavy Machinery and Components Thereof; Inv. No. 337-TA-1507 (Violation)

U.S. International Trade Commission

Holding

This supplemental complaint, filed by Caterpillar Inc., supplements its Section 337 complaint in Certain Heavy Machinery and Components Thereof by adding Exhibit 101 (ImportGenius import record excerpts) and inserting a sentence in paragraph 76 alleging that Doosan Bobcat India Private Ltd. sells for importation into the United States products subject to the requested investigation.

Why It Matters

The supplement bolsters the importation allegations against compact track loaders and skid-steer loaders accused of infringing the '637 Patent, a prerequisite for a Section 337 violation. It follows discussions with OUII Staff and likely aims to satisfy institution requirements. The document does not itself describe the relief sought.

Full Summary

This supplemental complaint, filed by Caterpillar Inc., supplements its Section 337 complaint in Certain Heavy Machinery and Components Thereof by adding Exhibit 101 (ImportGenius import record excerpts) and inserting a sentence in paragraph 76 alleging that Doosan Bobcat India Private Ltd. sells for importation into the United States products subject to the requested investigation. The supplement bolsters the importation allegations against compact track loaders and skid-steer loaders accused of infringing the '637 Patent, a prerequisite for a Section 337 violation. It follows discussions with OUII Staff and likely aims to satisfy institution requirements. The document does not itself describe the relief sought. Complainant is Caterpillar Inc., represented by Kirkland & Ellis LLP; respondents are not listed in the metadata. The supplement adds Exhibit 101, excerpts from ImportGenius Records dated May 19, 2026, to the Exhibit Table on page vii. Paragraph 76 is supplemented with a sentence stating that Doosan Bobcat India Private Ltd. sells for importation into the United States products subject to the investigation. The accused products are compact track loaders and skid-steer loaders alleged to infringe the '637 Patent. The paragraph states that a 2025 Doosan Company Profile showed manufacture in China, the Czech Republic, and India, with Mexico slated for 2026. The filing is a clarification made after discussions with OUII Staff; no domestic industry or relief details appear in it.

Key Points

  • Complainant is Caterpillar Inc., represented by Kirkland & Ellis LLP; respondents are not listed in the metadata.
  • The supplement adds Exhibit 101, excerpts from ImportGenius Records dated May 19, 2026, to the Exhibit Table on page vii.
  • Paragraph 76 is supplemented with a sentence stating that Doosan Bobcat India Private Ltd. sells for importation into the United States products subject to the investigation.
  • The accused products are compact track loaders and skid-steer loaders alleged to infringe the '637 Patent.
  • The paragraph states that a 2025 Doosan Company Profile showed manufacture in China, the Czech Republic, and India, with Mexico slated for 2026.
  • The filing is a clarification made after discussions with OUII Staff; no domestic industry or relief details appear in it.
amended complaintinfringement

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