Core Insights - China Petroleum & Chemical Corporation (Sinopec) and its subsidiaries have recently obtained a patent for a "new type of cyclone quenching box," with the patent number CN116492936B, applied for on April 2023 [1][2] Company Summaries - China Petroleum & Chemical Corporation (Sinopec) - Established in 2000, located in Beijing, primarily engaged in oil and gas extraction - Registered capital of approximately 12.17 billion RMB - Has invested in 263 companies and participated in 5,000 bidding projects - Holds 45 trademark registrations and 5,000 patents, along with 40 administrative licenses [1] - Sinopec Engineering (Group) Co., Ltd. - Established in 2007, located in Beijing, primarily engaged in water management - Registered capital of approximately 441.85 million RMB - Has invested in 12 companies and participated in 63 bidding projects - Holds 5,000 patents and 4 administrative licenses [1] - Sinopec Guangzhou Engineering Co., Ltd. - Established in 1998, located in Guangzhou, primarily engaged in professional technical services - Registered capital of 30 million RMB - Has invested in 2 companies and participated in 4,093 bidding projects - Holds 4 trademark registrations, 845 patents, and 21 administrative licenses [2] - Sinopec Hainan Refining & Chemical Co., Ltd. - Established in 2003, located in Haikou, primarily engaged in oil, coal, and other fuel processing - Registered capital of approximately 960.62 million RMB - Has invested in 4 companies and participated in 5,000 bidding projects - Holds 24 patents and an extensive number of 16,217 administrative licenses [2]