Group 1 - The U.S. International Trade Commission (ITC) voted to initiate a Section 337 investigation into certain mobile cellular communications devices on August 4, 2025 [1] - The investigation was prompted by a complaint from South Korea's Pantech Corporation, alleging that the products exported to, imported into, and sold in the U.S. violated U.S. patent laws [1] - The patents in question include U.S. registered patent numbers 9,548,839, 11,659,503, 11,051,344, and 12,267,876, with Pantech requesting a limited exclusion order and a cease-and-desist order [1] Group 2 - The ITC is required to determine the end date of the investigation within 45 days of the case being filed [3] - Unless vetoed by the U.S. Trade Representative for policy reasons, the relief orders issued by the ITC in Section 337 cases take effect on the date of issuance and have final effect 60 days thereafter [3] Group 3 - Multiple companies are named as respondents in the investigation, including OnePlus Technology, Lenovo Group, Motorola Mobility, and various TCL entities [2]