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U.S. International Trade Commission Issues Orders Against Xiamen Dirongte Trading Co., Ltd. in Patent Case

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The U.S. International Trade Commission (ITC) has decided to issue a limited exclusion order and a cease and desist order against Xiamen Dirongte Trading Co., Ltd. of Xiamen City, China. This company was the only respondent in the investigation. The case concerned the import of dryer wall exhaust vent assemblies and their components.

The investigation began on February 6, 2025, after a complaint from InOvate Acquisition Company of Jupiter, Florida. This complaint stated that Xiamen Dirongte Trading Co., Ltd. violated Section 337 of the Tariff Act of 1930. The violation was due to the import, sale for import, or sale within the U.S. after importation of dryer wall exhaust vent assemblies and components. These actions were said to infringe on certain claims of U.S. Patent No. 11,953,230. The complaint also claimed that there was a related industry in the United States.

Xiamen Dirongte Trading Co., Ltd. did not respond to the ITC’s complaint or its notice. On March 14, 2025, the Administrative Law Judge (ALJ) ordered Xiamen Dirongte to explain its lack of response. The company did not reply. On April 15, 2025, the ALJ found Xiamen Dirongte in default. The Commission chose not to review this decision. It then asked for briefs on the remedy, bonding, and public interest.

On May 19, 2025, InOvate replied, asking for both a limited exclusion order and a cease and desist order against Xiamen Dirongte. No other responses were given.

After reviewing the case record, the Commission decided on the following remedies:

  • A limited exclusion order. This order blocks the unlicensed entry into the United States of certain dryer wall exhaust vent assemblies and components that infringe the ‘230 patent and come from Xiamen Dirongte Trading Co., Ltd.
  • A cease and desist order against Xiamen Dirongte Trading Co., Ltd.

The Commission also set a bond for the Presidential review period. The bond is 100% of the value of the infringing imported products.

The Commission found no public interest reasons to stop these orders from being issued.

The ITC made its official vote on June 16, 2025. The orders and bond are effective following that date. The investigation is now terminated.

The decision was announced by Susan Orndoff, Supervisory Attorney of the ITC. For more information, documents can be found on the ITC’s electronic docket at https://edis.usitc.gov.


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