Growing community of inventors

Tainan, Taiwan

John Chin

Average Co-Inventor Count = 2.00

ph-index = 4

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 = 151

John ChinA Glen Herald, Jr (3 patents)John ChinKeith W Sheffield (1 patent)John ChinJohn Chin (4 patents)A Glen Herald, JrA Glen Herald, Jr (3 patents)Keith W SheffieldKeith W Sheffield (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Crews, Inc. (3 from 7 patents)


4 patents:

1. D418533 - Safety glasses

2. 5657106 - Safety goggle assembly including corrective lenses

3. D372490 - Safety glasses and prescription lens insert combination

4. 5493348 - Means for mounting a prescription lens accessory onto a pair of glasses

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as of
1/11/2026
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