发明人罗永刚,周伟,刘建华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115609999 A, 授权公告日 2025-11-03.
发明人何建平,陈志强,钱学锋. "Method for the Synthesis of 4-(2-Chlorophenyl)-2-(3-chlorophenyl)-1,2-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 113885323 A, 授权公告日 2024-03-18.
发明人郭海燕,徐明华,钱学锋. "A Process for Preparing High-Purity 4-(2-Chlorophenyl)-2-(3-chlorophenyl)-1,2-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 117507262 A, 授权公告日 2022-03-17.
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