Beijing Petroleum Machinery Factory

Chen Wang (1 out of 87 patents)

Yanfu Huang (1 out of 2 patents)

Tiejun Li (1 out of 2 patents)

4.  Guanghua Liu (1 out of 2 patents)

5.  Xinli Liu (1 out of 1 patent)

6.  Lianyang Zou (1 out of 1 patent)

7.  Shikai Tao (1 out of 1 patent)

8.  Wenjing Yang (1 out of 1 patent)

9.  Guoxing Yan (1 out of 1 patent)

10.  Hongjiang Shi (1 out of 1 patent)

11.  Qian Shi (1 out of 1 patent)

12.  Chengqin Sun (1 out of 1 patent)

13.  Chunhua Zhang (1 out of 3 patents)

14.  Zhiyong Zhou (1 out of 1 patent)

15.  Xingming Pan (1 out of 1 patent)