Patent search ap:("UNION CARBIDE CORP") AND inv:"CREAGH JOSEPH P" Page 1

1.

发明授权
Separation of n-methyl piperazine from mixtures thereof with piperazine 失效
Title translation: 从哌嗪与其混合物中分离出正甲基哌嗪

公开(公告)号：US3069331A

公开(公告)日：1962-12-18

申请号：US83244559

申请日：1959-08-10

Applicant: UNION CARBIDE CORP

Inventor： MYERLY RICHARD C , CREAGH JOSEPH P

IPC: C07D295/023

CPC classification number: C07D295/023

Patent Agency Ranking