Li Junwen

Jilin, CN: #1 of 3 inventorsTop 35%

Overall (1989): #37,885 of 140,708Top 30%

1 Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4851136	Method of and apparatus for filtering a medium	Liu Fanqing, Yao Jixian	1989-07-25