Growing community of inventors

Hsinchu, Taiwan

Tjong-Ren Chang

Average Co-Inventor Count = 5.69

ph-index = 1

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 = 1

Tjong-Ren ChangJin-Yuh Lu (3 patents)Tjong-Ren ChangWen-Chun Chiu (2 patents)Tjong-Ren ChangWei-Yuan Tsou (2 patents)Tjong-Ren ChangChun-Chieh Huang (1 patent)Tjong-Ren ChangBrian D Veeder (1 patent)Tjong-Ren ChangThomas Lin (1 patent)Tjong-Ren ChangChin-Chia Chang (1 patent)Tjong-Ren ChangJoel Skutsky (1 patent)Tjong-Ren ChangAndy Zao (1 patent)Tjong-Ren ChangHsiu-Wei Wu (1 patent)Tjong-Ren ChangShuang-Chang Yang (1 patent)Tjong-Ren ChangChun-Hsu Lin (1 patent)Tjong-Ren ChangTjong-Ren Chang (3 patents)Jin-Yuh LuJin-Yuh Lu (24 patents)Wen-Chun ChiuWen-Chun Chiu (2 patents)Wei-Yuan TsouWei-Yuan Tsou (2 patents)Chun-Chieh HuangChun-Chieh Huang (38 patents)Brian D VeederBrian D Veeder (2 patents)Thomas LinThomas Lin (2 patents)Chin-Chia ChangChin-Chia Chang (1 patent)Joel SkutskyJoel Skutsky (1 patent)Andy ZaoAndy Zao (1 patent)Hsiu-Wei WuHsiu-Wei Wu (1 patent)Shuang-Chang YangShuang-Chang Yang (1 patent)Chun-Hsu LinChun-Hsu Lin (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Wellypower Optronics Corporation (2 from 2 patents)

2. E.i. Dupont De Nemours and Company (1 from 16,338 patents)

3. Wellpower Optronics Co Ltd (1 from 1 patent)


3 patents:

1. 7969083 - Discharge lamp and production method thereof

2. 7946900 - Fabrication method of discharge lamp

3. 7677945 - Method of forming an external electrode fluorescent lamp, thick film electrode compositions used therein, and lamps and LCD devices formed thereof

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as of
12/29/2025
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