Growing community of inventors

Shenzhen, China

Haifeng Duan

Average Co-Inventor Count = 1.53

ph-index = 2

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 = 7

Haifeng DuanJun Wang (1 patent)Haifeng DuanWei Cui (1 patent)Haifeng DuanYimin Li (1 patent)Haifeng DuanXinyu Ge (1 patent)Haifeng DuanZe Yu (1 patent)Haifeng DuanYijun Wu (1 patent)Haifeng DuanDagang Chen (1 patent)Haifeng DuanHaifeng Duan (6 patents)Jun WangJun Wang (223 patents)Wei CuiWei Cui (7 patents)Yimin LiYimin Li (7 patents)Xinyu GeXinyu Ge (3 patents)Ze YuZe Yu (1 patent)Yijun WuYijun Wu (1 patent)Dagang ChenDagang Chen (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Huawei Technologies Co., Limited (6 from 27,108 patents)


6 patents:

1. 9510371 - Method and apparatus for controlling service transmission

2. 9288828 - Method, apparatus and system for accessing service by mobile station

3. 9179004 - Method and apparatus for charging

4. 9167045 - Method, apparatus and system for intercutting advertisement

5. 8649761 - Service charging method, service charging system, network access server and protocol resolving device

6. 8326262 - Advice of charging method, system and mobile terminal

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as of
12/6/2025
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