Beijing, China

Beijing Hengfengzhiyuan Technology Co., Ltd.


USPTO Granted Patents = 2

Forward Citations = 2

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1 inventor (with patents filed for the assignee):

goldMedal Yu Wei Chen (2 out of 60 patents)


2 patents:

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USPTO Data Jan 1 1976 - Dec 9 2025

2 Patents

#762 in Beijing

#9,949 in China

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Beijing, China
Forward Citations = 2

1 inventor:

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