Huafeng Chemical and others have obtained patents for a adipic acid powder conveying system and method
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According to news from August 12, 2025, **information from the Intellectual Property Office shows that Chongqing Huafeng Chemical Co., Ltd., Chongqing Huafeng Polyamide Co., Ltd., and Chongqing Huafeng New Materials Research Institute Co., Ltd. have obtained a patent titled “A hexanedioic acid powder conveying system and method.” The approval announcement number is CN115258713B, with the application date being August 2022. According to Tianyancha, Chongqing Huafeng Chemical Co., Ltd. was established in 2010 and is located in Chongqing City; it is a company that focuses on the manufacturing of chemical raw materials and chemical products. The registered capital of the company is 1.203 billion RMB. According to the big data analysis conducted by Tianyancha, Chongqing Huafeng Chemical Co., Ltd. has made investments in 1 company in total and participated in 142 bidding projects. In terms of property-related information, it has 6 trademark records and 116 patent records; additionally, the company holds 1,113 administrative licenses. Chongqing Huafeng Polyamide Co., Ltd., established in 2018 and located in Chongqing, is a company primarily engaged in the manufacturing of chemical raw materials and chemical products. The registered capital of the company is 300 million RMB. According to the big data analysis provided by Tianyancha, Chongqing Huafeng Polyamide Co., Ltd. has made investments in 3 companies, participated in 32 bidding projects, and holds 31 patent records. In addition, the company possesses 168 administrative licenses. Chongqing Huafeng New Materials Research Institute Co., Ltd., established in 2017 and located in Chongqing, is a company focused on research and experimental development. The registered capital of the company is 20 million RMB. According to the big data analysis conducted by Tianyancha, Chongqing Huafeng New Materials Research Institute Co., Ltd. holds 42 patent records; in addition, the company also possesses 1 administrative license.
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