The U.S. International Trade Commission (ITC) has issued a final determination in the Section 337 investigation involving oil vaporizing devices and their components, finding that certain importation and sales activities violated multiple U.S. patents. The Commission decided to issue a Limited Exclusion Order (LEO) and a Cease and Desist Order (CDO) against respondent STIIIZY, thereby terminating the investigation.

Key Points

• The U.S. International Trade Commission (USITC) issued a final ruling in Investigation No. 337-TA-1392, finding a violation of Section 337 of the Tariff Act of 1930;
• The products at issue are certain oil vaporizing devices, components thereof, and products containing the same;
• The USITC determined to issue a Limited Exclusion Order (LEO) barring the importation of infringing products into the United States;
• The Commission also issued Cease and Desist Orders (CDOs) against two respondents and declared the investigation terminated;
• During the Presidential review period, the bond for continued importation of the infringing products is set at 100%.

According to an announcement by the U.S. International Trade Commission (USITC), the Commission determined that a violation of Section 337 of the Tariff Act of 1930 occurred in the investigation titled “Certain Oil Vaporizing Devices, Components Thereof, and Products Containing the Same” (Investigation No. 337-TA-1392), and decided to impose remedial measures.

The Commission will issue a Limited Exclusion Order (LEO) prohibiting the unauthorized importation into the United States of the infringing oil vaporizing devices, their components, and products containing the same. In addition, Cease and Desist Orders (CDOs) were issued against two respondents. The investigation is terminated as a result of the final determination.

According to the notice, the investigation was originally instituted on March 6, 2024, and involved U.S. Patent Nos. 11,369,756; 11,766,527; 11,369,757; and 11,759,580.

The respondents named in the investigation include STIIIZY (STIIIZY IP LLC, STIIIZY, Inc., among others) and ALD (ALD Group Limited and ALD Hong Kong Holdings).

With respect to procedural history, the Administrative Law Judge (ALJ) issued a Final Initial Determination (FID) on March 6, 2025, finding no violation of Section 337 on the grounds that the complainant failed to satisfy the economic prong of the domestic industry requirement. The Commission subsequently decided to review portions of the FID and remanded the investigation for further proceedings. On July 18, 2025, the ALJ determined on remand that the complainant had satisfied the domestic industry economic requirement.

Based on the full record, the Commission ultimately reached a final determination that a violation of Section 337 had occurred and decided to issue a Limited Exclusion Order and Cease and Desist Orders as remedies.

The notice further states that during the Presidential review period, the bond for the importation of the infringing products is set at 100%.

Image source: U.S. International Trade Commission (USITC)