Growing community of inventors

Daejeon, South Korea

Hae Sung Chang

Average Co-Inventor Count = 5.78

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

Hae Sung ChangJae Wook Ryu (7 patents)Hae Sung ChangYoung Kwan Ko (5 patents)Hae Sung ChangJae Chun Woo (5 patents)Hae Sung ChangDong Wan Koo (5 patents)Hae Sung ChangDae Whang Kim (5 patents)Hae Sung ChangJin Seog Kim (2 patents)Hae Sung ChangDae Won Kim (1 patent)Hae Sung ChangDong Ju Jeon (1 patent)Hae Sung ChangIn Taek Hwang (1 patent)Hae Sung ChangDae-Whang Kim (1 patent)Hae Sung ChangTae-Joon Kim (1 patent)Hae Sung ChangIn Ho Jo (1 patent)Hae Sung ChangHae Sung Chang (7 patents)Jae Wook RyuJae Wook Ryu (20 patents)Young Kwan KoYoung Kwan Ko (11 patents)Jae Chun WooJae Chun Woo (9 patents)Dong Wan KooDong Wan Koo (8 patents)Dae Whang KimDae Whang Kim (7 patents)Jin Seog KimJin Seog Kim (3 patents)Dae Won KimDae Won Kim (16 patents)Dong Ju JeonDong Ju Jeon (7 patents)In Taek HwangIn Taek Hwang (5 patents)Dae-Whang KimDae-Whang Kim (5 patents)Tae-Joon KimTae-Joon Kim (1 patent)In Ho JoIn Ho Jo (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Korea Research Institute of Chemical Technology (4 from 623 patents)

2. Dongbu Hannong Chemical Co., Ltd. (3 from 12 patents)


7 patents:

1. 6706917 - Preparing method of 2-phenylalkanoic acid derivatives

2. 6600048 - Herbicidal phenoxypropionic acid N-alkyl-N-2-fluorophenyl amide compounds

3. 6489268 - Highly selective herbicidal phenoxypropionic acid alkoxycarbonyl anilid compounds and method of preparing the same

4. 6486098 - Herbicidal phenoxypropionic acid N-alkyl-N-2-fluorophenyl amide compounds

5. 6222060 - Process for preparing o-(carboalkoxy)phenylmethanesulfonyl chloride derivatives

6. 5461026 - Pyridine sulfonyl urea derivatives

7. 5278134 - Herbicidal pyridine derivatives and their salts of

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as of
12/8/2025
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