Growing community of inventors

Chiayi Hsien, Taiwan

Cheng-Nan Chen

Average Co-Inventor Count = 1.33

ph-index = 2

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 = 43

Cheng-Nan ChenYu-Chiung Chen (1 patent)Cheng-Nan ChenCheng-Nan Chen (2 patents)Yu-Chiung ChenYu-Chiung Chen (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Karma Medical Products Co., Ltd. (2 from 15 patents)


2 patents:

1. 8419047 - Folding device for wheelchair

2. D622641 - Wheelchair

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as of
12/19/2025
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