Growing community of inventors

Shenzhen, China

Ruzhong Cheng

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 = 2

Ruzhong ChengWei Chen (1 patent)Ruzhong ChengYong Zhao (1 patent)Ruzhong ChengYong Dai (1 patent)Ruzhong ChengZejun Wu (1 patent)Ruzhong ChengYunli Qing (1 patent)Ruzhong ChengRuzhong Cheng (1 patent)Wei ChenWei Chen (89 patents)Yong ZhaoYong Zhao (42 patents)Yong DaiYong Dai (10 patents)Zejun WuZejun Wu (1 patent)Yunli QingYunli Qing (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Shenzhen Safdao Technology Corporation (1 from 1 patent)


1 patent:

1. 8891824 - Method and device for detecting fatigue driving and the automobile using the same

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1/23/2026
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