Group 1 - The core point of the article is that Sinopec has obtained a patent for a method and device for assessing tank corrosion, which indicates its focus on innovation in the oil and gas sector [1] Group 2 - Sinopec, established in 2000, is primarily engaged in oil and gas extraction, with a registered capital of approximately 12.17 billion RMB [1] - Sinopec has invested in 263 companies and participated in 5,000 bidding projects, showcasing its extensive operational footprint [1] - The company holds 45 trademark registrations and 5,000 patents, along with 40 administrative licenses, reflecting its strong intellectual property portfolio [1] Group 3 - Sinopec (Dalian) Petrochemical Research Institute, founded in 2022, focuses on research and experimental development, with a registered capital of approximately 338.46 million RMB [1] - The research institute has invested in 1 company and participated in 1,173 bidding projects, indicating its active role in the industry [1] - It holds 4,657 patents and 58 administrative licenses, further emphasizing its commitment to research and development [1]