Growing community of inventors

Shandong, China

Duanjun Ma

Average Co-Inventor Count = 4.20

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

Duanjun MaTianhua Huang (1 patent)Duanjun MaXiaoyi Wang (1 patent)Duanjun MaRenyong Xu (1 patent)Duanjun MaWerner Hoefler (1 patent)Duanjun MaChangyu Xie (1 patent)Duanjun MaZhengguo Gao (1 patent)Duanjun MaXuri Gao (1 patent)Duanjun MaDongfeng Zhao (1 patent)Duanjun MaWerner Hoefler (0 patent)Duanjun MaDuanjun Ma (2 patents)Tianhua HuangTianhua Huang (5 patents)Xiaoyi WangXiaoyi Wang (4 patents)Renyong XuRenyong Xu (2 patents)Werner HoeflerWerner Hoefler (1 patent)Changyu XieChangyu Xie (1 patent)Zhengguo GaoZhengguo Gao (1 patent)Xuri GaoXuri Gao (1 patent)Dongfeng ZhaoDongfeng Zhao (1 patent)Werner HoeflerWerner Hoefler (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. China International Marine Containers (group) Ltd. (1 from 38 patents)

2. Qingdao Cimc Reefer Trailer Co., Ltd. (1 from 8 patents)

3. Cimc Vehicles Group Co., Ltd. (1 from 8 patents)

4. Ife-victall Railway Vehicle Door Systems (qingdao) Co., Ltd. (1 from 1 patent)

5. Ife-victall Railway Vehicle Door Systems (qingdao) (0 patent)


2 patents:

1. 10927594 - Vehicle door for railway vehicle and railway vehicle comprising the vehicle door

2. 9278802 - Detachable container

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idiyas.com
as of
12/25/2025
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