Shandong, China

Ife-Victall Railway Vehicle Door Systems (Qingdao) Co., Ltd.


USPTO Granted Patents = 1

Forward Citations = 0

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3 inventors (with patents filed for the assignee):

goldMedal Duanjun Ma (1 out of 2 patents)

silverMedal Changyu Xie (1 out of 1 patent)

bronzeMedal Werner Hoefler (1 out of 1 patent)


1 patent:

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USPTO Data Jan 1 1976 - Dec 30 2025

1 Patents

#130 in Shandong

#16,126 in China

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Shandong, China
Forward Citations = 0

3 inventors:

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