Growing community of inventors

Hong Kong, China

Sing C Yuen

Average Co-Inventor Count = 2.25

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 = 12

Sing C YuenKwok W Tsui (3 patents)Sing C YuenBruce M D'Andrade (1 patent)Sing C YuenSing C Yuen (3 patents)Kwok W TsuiKwok W Tsui (12 patents)Bruce M D'AndradeBruce M D'Andrade (64 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Arco Industries Corporation (3 from 34 patents)


3 patents:

1. 4341034 - Toy washing machine

2. 4340373 - Spelling machine

3. 4338741 - Toy dryer

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as of
1/16/2026
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