Group 1 - Shaanxi Transportation Technology Co., Ltd. has obtained a patent for "ETC vehicle entrance information erasure method, system, device, and storage medium," with authorization announcement number CN120877532B, and the application date is September 2025 [1] - Shaanxi Transportation Technology Co., Ltd. was established in 1993, located in Xi'an, and primarily engages in software and information technology services, with a registered capital of 105 million RMB [1] - The company has made investments in one enterprise, participated in 1,865 bidding projects, holds 10 trademark registrations, 49 patents, and possesses 13 administrative licenses [1] Group 2 - Xi'an Highway Research Institute Co., Ltd. was established in 2001, located in Xi'an, and focuses on research and experimental development, with a registered capital of approximately 166.32 million RMB [1] - The institute has invested in 18 enterprises, participated in 1,711 bidding projects, holds 18 trademark registrations, 596 patents, and possesses 21 administrative licenses [1]