Group 1 - The core point of the article is that FAW Jiefang Automotive Co., Ltd. has applied for a patent related to a method and device for carbon loading testing of particulate filters, indicating a focus on innovation in automotive emissions technology [1] Group 2 - The patent application, published as CN120444116A, was filed on May 2025 and involves a method that includes carbon accumulation operations and regeneration tests for particulate filters [1] - FAW Jiefang Automotive Co., Ltd. was established in 2002 and is primarily engaged in the automotive manufacturing industry, with a registered capital of 1,080,301.25 thousand RMB [1] - The company has invested in 23 enterprises, participated in 5,000 bidding projects, and holds 272 trademark records and 5,000 patent records, along with 189 administrative licenses [1]