U.S. International Trade Commission Ends Semiconductor Investigation
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On September 3, 2026, the U.S. International Trade Commission (USITC) decided not to review a key initial determination. This decision was related to Investigation No. 337-TA-1443.
The investigation was about foreign-made semiconductor devices. It also involved products using these devices and their components. The investigation was based on a complaint from Longitude Licensing Ltd. and Marlin Semiconductor Limited. These companies are located in Dublin, Ireland.
The complaint suggested violations of section 337 of the Tariff Act of 1930. It was about importing semiconductor devices into the United States. The complaint also covered selling these products for importation and domestic sales after importation. The complaint said these actions violated certain patent rights.
Five U.S. patents were named in the complaint. These were U.S. Patent Nos. 7,745,847; 9,093,473; 9,147,747; 9,184,292; and 9,953,880.
Some companies were named as respondents. They included Taiwan Semiconductor Manufacturing Company Limited, Apple, Broadcom Inc., Lenovo Group Limited, Motorola (Wuhan) Mobility Technologies, OnePlus Technology, and Qualcomm Inc. The Office of Unfair Import Investigations was also a party to this investigation.
During the investigation, some amendments were made. For instance, Lenovo Group Limited was replaced with other Lenovo entities.
Initially, certain claims of the patents were dropped from the investigation. These decisions were based on withdrawal requests from the Complainants.
Later, the claim against Apple was settled through an agreement.
On July 14, 2026, the Complainants and Taiwan Semiconductor Manufacturing Company Limited filed a joint motion to terminate the investigation. They reached a settlement agreement. The motion had support from the Office of Unfair Import Investigations.
On August 5, 2026, the administrative law judge granted the motion to terminate the investigation entirely. This decision considered all parties involved and the connections between them.
As a result, the USITC decided not to review this initial determination. The investigation concluded completely.
This determination follows the rules and authority given by section 337 of the Tariff Act of 1930, along with the Commission’s Procedures rules.
By this conclusion, all actions and claims in Investigation No. 337-TA-1443 are now closed.
This outcome was officially documented by Lisa R. Barton, Secretary to the Commission.
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