Growing community of inventors

Xuzhou, China

Tong Chang

Average Co-Inventor Count = 1.00

ph-index = NA

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 0

Tong Chang ↔ Lihua Han (1 patent)Tong Chang ↔ Jun Li (1 patent)Tong Chang ↔ Hui Chen (1 patent)Tong Chang ↔ Jie Zhou (1 patent)Tong Chang ↔ Dechun Ping (1 patent)Tong Chang ↔ Qiang Liu (1 patent)Tong Chang ↔ Gang Zhang (1 patent)Tong Chang ↔ Yan Lv (1 patent)Tong Chang ↔ Yaqing Mu (1 patent)Tong ChangTong Chang (1 patent)Lihua HanLihua Han (2 patents)Jun LiJun Li (1 patent)Hui ChenHui Chen (1 patent)Jie ZhouJie Zhou (1 patent)Dechun PingDechun Ping (1 patent)Qiang LiuQiang Liu (1 patent)Gang ZhangGang Zhang (1 patent)Yan LvYan Lv (1 patent)Yaqing MuYaqing Mu (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Xuzhou Xugong Foundation Construction Machinery Co., Ltd. (1 from 5 patents)


1 patent:

1. 12498297 - Test device and method for testing and commissioning comprehensive performance of rotary drilling rig

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12/18/2025
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