2002— | Patent Attorney, Dragon International Patent Office, Mechanical Department | |
1980—1989 | Examiner, State Intellectual Property Office, Mechanical Examination Department | |
1980—1989 | Senior Examiner, State Intellectual Property Office, Mechanical Examination Department | |
1980—1989 | Director, State Intellectual Property Office, Mechanical Examination Department | |
1980—1989 | Member, State Intellectual Property Office, Reexamination Board | |
1978—1980 | Deputy Director, Chinese Academy of Sciences, High Energy Physics Research Institute | |
1973—1978 | Director, Ministry of Nuclear Industry, No. 503 Research Institute |
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