Growing community of inventors

Seoul, South Korea

Ki Yong Chang

Average Co-Inventor Count = 1.18

ph-index = 7

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 = 166

Ki Yong ChangMin Young Kang (7 patents)Ki Yong ChangKi Yong Chang (23 patents)Min Young KangMin Young Kang (13 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (5 from 832,680 patents)

2. Disk Dr. Co., Ltd. (2 from 2 patents)

3. Changeui Medical Co., Ltd. (1 from 1 patent)


23 patents:

1. D1084363 - Neck brace

2. D1084364 - Neck brace

3. D1082017 - Back brace

4. D1016857 - Hand pump

5. 11648144 - Device for correcting forward head posture

6. 11304839 - Lifting belt

7. D948062 - Medical neck brace

8. 11123213 - Lifting belt

9. D916384 - Knee pad

10. D908974 - Knee pad

11. 10667567 - Wrist protector

12. D858896 - Wrist protector

13. D834204 - Knee brace

14. D833629 - Belt bandage

15. D833024 - Belt bandage

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idiyas.com
as of
12/5/2025
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