Growing community of inventors

Taichung, Taiwan

Yung-Yi Chang

Average Co-Inventor Count = 2.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 0

Yung-Yi ChangChung-Hsien Tsai (1 patent)Yung-Yi ChangYung-Yi Chang (1 patent)Chung-Hsien TsaiChung-Hsien Tsai (2 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Advantek Health Tech Co., Ltd. (1 from 2 patents)


1 patent:

1. 11413493 - Treadmill having auxiliary cushioning

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12/11/2025
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