Growing community of inventors

Qinhuangdao, China

Yu Chang

Average Co-Inventor Count = 6.00

ph-index = 1

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

Yu ChangWeidong Liu (1 patent)Yu ChangYongwang Zhao (1 patent)Yu ChangYukun Yang (1 patent)Yu ChangZhi Chang (1 patent)Yu ChangGuidong Yang (1 patent)Yu ChangYu Chang (1 patent)Weidong LiuWeidong Liu (75 patents)Yongwang ZhaoYongwang Zhao (24 patents)Yukun YangYukun Yang (7 patents)Zhi ChangZhi Chang (1 patent)Guidong YangGuidong Yang (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Citic Dicastal Co., Ltd (1 from 539 patents)


1 patent:

1. 10464137 - Vertical lathe chuck mounting rack

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12/19/2025
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