For the Inventor, By the Inventor

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Shandong, China

Shandong Nhu Amino Acid Co., Ltd.

USPTO Granted Patents = 4

EPO Patents = 2

Forward Citations = 0

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21 inventors (with patents filed for the assignee):

Zhirong Chen (4 out of 23 patents)

Zhixuan Wang (3 out of 3 patents)

Cong Chen (3 out of 3 patents)

4. Hong Yin (2 out of 17 patents)

5. Baishan Hu (2 out of 7 patents)

6. Yu Wang (2 out of 2 patents)

7. Zhengjiang Wang (2 out of 2 patents)

8. Qichuan Li (1 out of 7 patents)

9. Haoran Li (1 out of 11 patents)

10. Jianyong Mao (1 out of 4 patents)

11. Guanbing Li (1 out of 1 patent)

12. Yingkuo Yang (1 out of 1 patent)

13. Jiyu Tang (1 out of 1 patent)

14. Weiyong Chen (1 out of 1 patent)

15. Qing Liu (1 out of 3 patents)

4 patents: Sort by Forward Citations

1. 12391969 - Additive used in methionine preparation process, and methionine preparation method (2025-08-19),

2. 11180440 - Method for preparing isophorone diamine by means of hydrogenation reduction of isophorone nitrile imine (2021-11-23),

3. 11130732 - Method and device for preparing 2-hydroxy-4-methylthiobutyric acid and intermediates thereof (2021-09-28),

4. 10293273 - Method for continuous preparation of high bulk density methionine crystal (2019-05-21),

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USPTO Data Jan 1 1976 - Jan 6 2026

4 Patents

#59 in Shandong

#5,610 in China

Shandong, China

Shandong Nhu Amino Acid Co., Ltd.

Forward Citations = 0

21 inventors:

Zhirong Chen (4 out of 23 patents)

Zhixuan Wang (3 out of 3 patents)

Cong Chen (3 out of 3 patents)

4. Hong Yin (2 out of 17 patents)

5. Baishan Hu (2 out of 7 patents)

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