Growing community of inventors

Taichung, Taiwan

Chia-Kan Chang

Average Co-Inventor Count = 2.08

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 = 13

Chia-Kan ChangAndrew W York (2 patents)Chia-Kan ChangRichard Bradley Brumfield (2 patents)Chia-Kan ChangGregory Scott Smith (2 patents)Chia-Kan ChangJoseph Fruechtel (2 patents)Chia-Kan ChangSung-Po Cheng (2 patents)Chia-Kan ChangTsung-Mou Tsai (2 patents)Chia-Kan ChangHung-Chi Chou (2 patents)Chia-Kan ChangShang-Yung Liang (1 patent)Chia-Kan ChangChia-Chi Tang (1 patent)Chia-Kan ChangYung-Chin Lin (1 patent)Chia-Kan ChangChin-Teng Lin (1 patent)Chia-Kan ChangChia-Kan Chang (10 patents)Andrew W YorkAndrew W York (50 patents)Richard Bradley BrumfieldRichard Bradley Brumfield (16 patents)Gregory Scott SmithGregory Scott Smith (14 patents)Joseph FruechtelJoseph Fruechtel (10 patents)Sung-Po ChengSung-Po Cheng (6 patents)Tsung-Mou TsaiTsung-Mou Tsai (4 patents)Hung-Chi ChouHung-Chi Chou (3 patents)Shang-Yung LiangShang-Yung Liang (10 patents)Chia-Chi TangChia-Chi Tang (9 patents)Yung-Chin LinYung-Chin Lin (3 patents)Chin-Teng LinChin-Teng Lin (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sintai Optical (shenzhen) Co., Ltd. (8 from 219 patents)

2. Asia Optical Co., Ltd. (4 from 486 patents)

3. Asia Optical International Ltd. (4 from 82 patents)

4. Sig Sauer Gmbh (2 from 185 patents)


10 patents:

1. 11530900 - Sighting system

2. 11060816 - Digital turret ballistic aiming system

3. 10809441 - Optical indicating structure

4. 10767962 - Digital turret ballistic aiming system

5. 10578400 - Sight

6. 10495415 - Sight

7. 10466735 - Knob structure

8. 10180698 - Knob structure

9. 9798156 - Sight

10. 9151569 - Sight with resilient member around frame screw

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idiyas.com
as of
12/18/2025
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