Sou Hu Cai Jing·2026-01-02 12:51Group 1 - The State Intellectual Property Office of China has granted a patent for a method of removing chloride ions from solutions to China Petroleum & Chemical Corporation, Changsha Huashijie Environmental Technology Development Co., Ltd., and Sinopec Baling Petrochemical Co., Ltd. The patent announcement number is CN118307083B, with an application date of January 2023 [1][2] Group 2 - China Petroleum & Chemical Corporation, established in 2000 and located in Beijing, primarily engages in oil and gas extraction. The company has a registered capital of 12,173,968.9893 thousand RMB and has invested in 267 enterprises, participated in 5,000 bidding projects, holds 45 trademark registrations, and has 5,000 patents [1] - Changsha Huashijie Environmental Technology Development Co., Ltd., also established in 2000 and located in Changsha, focuses on professional technical services. The company has a registered capital of 10,652.1277 thousand RMB, invested in 8 enterprises, participated in 1,124 bidding projects, holds 17 trademark registrations, and has 191 patents [1] - Sinopec Baling Petrochemical Co., Ltd., founded in 2020 and located in Yueyang, specializes in the manufacturing of chemical raw materials and products. The company has a registered capital of 733,279.44 thousand RMB, invested in 5 enterprises, participated in 5,000 bidding projects, holds 300 patents, and has 1,932 administrative licenses [2]