For the Inventor, By the Inventor

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Taipei Hsien, Taiwan

De Poan Pneamatic Corp.

USPTO Granted Patents = 1

Forward Citations = 5

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1 inventor (with patents filed for the assignee):

Yun-Chung Lee (1 out of 17 patents)

1 patent: Sort by Forward Citations

1. 6942042 - Pneumatic motor-controlled valve of screwdriver (2005-09-13),

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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#184 in Taipei Hsien

#5,928 in Taiwan

Taipei Hsien, Taiwan

De Poan Pneamatic Corp.

Forward Citations = 5

1 inventor:

Yun-Chung Lee (1 out of 17 patents)

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