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Vancouver, Canada

Tech4u Dynamics Inc.

USPTO Granted Patents = 1

Forward Citations = 0

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1 inventor (with patents filed for the assignee):

Shizhong Duan (1 out of 9 patents)

1 patent: Sort by Forward Citations

1. 9045151 - Track barcode systems for railroad management (2015-06-02),

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USPTO Data Jan 1 1976 - Dec 23 2025

1 Patents

#558 in Vancouver

#9,173 in Canada

Vancouver, Canada

Tech4u Dynamics Inc.

Forward Citations = 0

1 inventor:

Shizhong Duan (1 out of 9 patents)

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