Growing community of inventors

Qingdao, China

Qingjun Han

Average Co-Inventor Count = 8.31

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

Qingjun HanHuiqing Zhang (3 patents)Qingjun HanQing Tian (3 patents)Qingjun HanJianying Liang (2 patents)Qingjun HanLijun Ma (2 patents)Qingjun HanBo Chen (2 patents)Qingjun HanXiaojie Yu (2 patents)Qingjun HanXin Jiang (1 patent)Qingjun HanDonghua Wu (1 patent)Qingjun HanJinghai Jiao (1 patent)Qingjun HanMiao Wang (1 patent)Qingjun HanBaoqiang Shan (1 patent)Qingjun HanFangdong Hou (1 patent)Qingjun HanChanjuan Xiao (1 patent)Qingjun HanMingkun Liu (1 patent)Qingjun HanQingjun Han (3 patents)Huiqing ZhangHuiqing Zhang (6 patents)Qing TianQing Tian (3 patents)Jianying LiangJianying Liang (13 patents)Lijun MaLijun Ma (8 patents)Bo ChenBo Chen (6 patents)Xiaojie YuXiaojie Yu (2 patents)Xin JiangXin Jiang (21 patents)Donghua WuDonghua Wu (11 patents)Jinghai JiaoJinghai Jiao (7 patents)Miao WangMiao Wang (3 patents)Baoqiang ShanBaoqiang Shan (2 patents)Fangdong HouFangdong Hou (2 patents)Chanjuan XiaoChanjuan Xiao (1 patent)Mingkun LiuMingkun Liu (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Crrc Qingdao Sifang Co., Ltd. (3 from 92 patents)


3 patents:

1. 11125006 - Method, system and device for controlling door of railway vehicle

2. 10464524 - Alarming and unlocking device

3. 10207725 - Method and device for transmitting signal among compartments of train

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as of
12/4/2025
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