Group 1 - Dongfeng Motor Corporation has applied for a patent titled "A Method and System for Testing the Waterproof Performance of Automotive Connectors," with publication number CN121498985A, and the application date is November 2025 [1] - The patent involves a method for testing the waterproof performance of automotive connectors, which includes steps such as connecting the connector to a power source and placing it in a waterproof testing device to measure voltage drop across terminals [1] - The method aims to accurately reflect the waterproof performance of connectors under actual working conditions, addressing issues in existing technologies that fail to simulate real-world scenarios, which can lead to safety hazards like circuit short circuits or vehicle fires [1] Group 2 - Dongfeng Motor Corporation was established in 1999 and is located in Xiangyang, primarily engaged in the automotive manufacturing industry [2] - The company has a registered capital of 2 billion RMB and has invested in 16 enterprises, participated in 3,666 bidding projects, and holds 2,991 patent records [2] - Additionally, the company has 154 trademark records and 773 administrative licenses, indicating a robust presence in the automotive sector [2]