Jin Rong Jie·2025-07-05 04:06Group 1 - China Petroleum Pipeline Engineering Co., Ltd., China National Petroleum Corporation, and China Petroleum Pipeline Bureau Engineering Co., Ltd. have applied for a patent titled "A Pipeline Route Design Method Based on a Single Pipe Mathematical Model" [1] - The patent application was published under CN120257547A with an application date of June 2025 [1] - The patent outlines a method that includes steps such as determining a three-dimensional longitudinal section and UCS coordinate system based on the actual three-dimensional model of the pipeline installation target area [1] Group 2 - China Petroleum Pipeline Engineering Co., Ltd. was established in 1995, located in Langfang City, with a registered capital of 60 million RMB [2] - The company has participated in 1,883 bidding projects and holds 637 patents [2] - China National Petroleum Corporation was founded in 1990, located in Beijing, with a registered capital of 48,690 million RMB [2] - This corporation has invested in 113 companies and participated in 5,000 bidding projects, holding 5,000 patents [2] - China Petroleum Pipeline Bureau Engineering Co., Ltd. was established in 2000, also located in Langfang City, with a registered capital of 500,670.44 million RMB [2] - The company has invested in 34 enterprises and participated in 5,000 bidding projects, holding 1,307 patents [2]