Growing community of inventors

Hong Kong, China

Yuen Tung Kwok

Average Co-Inventor Count = 1.00

ph-index = 6

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 = 107

Yuen Tung KwokYuen Tung Kwok (21 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. John Gibson Enterprises, Inc. (10 from 15 patents)

2. Kwong Chak Fat Manufactory Ltd. (7 from 7 patents)

3. Kwong Chak Fat Lighter Co. Ltd. (4 from 4 patents)


21 patents:

1. D573300 - Lighter

2. D571502 - Lighter

3. D561387 - Flame lighter

4. D560010 - Butane lantern

5. D553291 - Lighter

6. D544145 - Lighter

7. D513340 - Lighter

8. D512178 - Lighter

9. D511860 - Lighter

10. D509620 - Lighter

11. D507150 - Lighter

12. D504976 - Lighter

13. D501273 - Lighter

14. D498874 - Lighter

15. D498558 - Lighter

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idiyas.com
as of
1/7/2026
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