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Yiyang, Hunan Province, China

Hunan Rivers Biotechnology Co. Ltd.

USPTO Granted Patents = 2

Forward Citations = 18

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7 inventors (with patents filed for the assignee):

Yan Sun (2 out of 52 patents)

Hongjuan Liu (2 out of 92 patents)

Dehua Liu (2 out of 12 patents)

4. Xianjin Ou (2 out of 2 patents)

5. Yunzhen Xu (2 out of 2 patents)

6. Weibin Liu (2 out of 2 patents)

7. Yueyong Lei (2 out of 2 patents)

2 patents: Sort by Forward Citations

1. 8507250 - Methods and genetically engineered micro-organisms for the combined production of PDO, BDO and PHP by fermentation (2013-08-13),

2. 8227217 - Methods and genetically engineered micro-organisms for the combined production of PDO, BDO and PHP by fermentation (2012-07-24),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#1 in Yiyang, Hunan Province

#9,971 in China

Yiyang, Hunan Province, China

Hunan Rivers Biotechnology Co. Ltd.

Forward Citations = 18

7 inventors:

Yan Sun (2 out of 52 patents)

Hongjuan Liu (2 out of 92 patents)

Dehua Liu (2 out of 12 patents)

4. Xianjin Ou (2 out of 2 patents)

5. Yunzhen Xu (2 out of 2 patents)

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