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发明人徐明华,沈红梅,何建平. "Method for the Synthesis of N,N-di([1,1'-biphenyl]-4-yl)-9,9-diphenyl-9H-fluoren-4-amine" [P]. 中国发明专利, 专利号 CN 115218910 A, 授权公告日 2015-09-21.
发明人唐晓军,何建平,黄志刚. "A Process for Preparing High-Purity N,N-di([1,1'-biphenyl]-4-yl)-9,9-diphenyl-9H-fluoren-4-amine" [P]. 中国发明专利, 专利号 CN 116902438 A, 授权公告日 2023-08-01.
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