For the Inventor, By the Inventor

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Dublin, Ireland

Chrysea Limited

USPTO Granted Patents = 2

Forward Citations = 0

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6 inventors (with patents filed for the assignee):

Jens Nielsen (2 out of 18 patents)

Anastasia Krivoruchko (2 out of 10 patents)

Florian David (2 out of 9 patents)

4. Jiufu Qin (1 out of 1 patent)

5. Bo Jiang (1 out of 5 patents)

6. Jiufu Qin (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 12435348 - Microbial cells for spermidine production (2025-10-07),

2. 10544435 - L-ornithine production in eukaryotic cells (2020-01-28),

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USPTO Data Jan 1 1976 - Jan 6 2026

2 Patents

#300 in Dublin

#579 in Ireland

Dublin, Ireland

Chrysea Limited

Forward Citations = 0

6 inventors:

Jens Nielsen (2 out of 18 patents)

Anastasia Krivoruchko (2 out of 10 patents)

Florian David (2 out of 9 patents)

4. Jiufu Qin (1 out of 1 patent)

5. Bo Jiang (1 out of 5 patents)

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