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For the Inventor, By the Inventor

Hsinchu, Taiwan

Jao-hsing Tsai


USPTO Granted Patents = 2

Forward Citations = 75

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1 inventor (with patents filed for the assignee):

goldMedal Hui-Nan Yu (2 out of 29 patents)


2 patents:

1. 6659922 - Resistance adjustment mechanism for easy pull exerciser (2003-12-09),
2. D474818 - Pulling exerciser (2003-05-21),
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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#351 in Hsinchu

#4,103 in Taiwan

...
Hsinchu, Taiwan

Jao-hsing Tsai

Forward Citations = 75

1 inventor:

goldMedal Hui-Nan Yu (2 out of 29 patents)

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