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For the Inventor, By the Inventor

Tianjin, China

Tianjin North Pharma Sci-Tech Co., Ltd


USPTO Granted Patents = 3



Forward Citations = 0

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2 inventors (with patents filed for the assignee):

goldMedal Yongfeng Wang (3 out of 10 patents)

silverMedal Kejun Zhao (3 out of 3 patents)

bronzeMedal Kejun No 32 Zhujiang Road Zhao (0 patent)

4.  Yongfeng C35 Third Floor No 7 Wang (0 patent)


3 patents:

1. 8461165 - 2-Substituted phenyl-5,7-dihydrocarbyl-3,7-dihydropyrrolo[2,3-d] pyrimidin-4-one derivatives, the preparation and the pharmaceutical use thereof (2013-06-11),
2. 7745433 - 2-Substituted phenyl-5, 7-dihydrocarbyl-3, 7-dihydropyrrolo [2, 3-D] pyrimidin-4-one derivatives, the preparation and the pharmaceutical use thereof (2010-06-29),
3. 7741483 - Process for making substituted pyrrolo[2,3-d]pyrimidine derivatives as inhibitors of phosphodiesterase 5 (2010-06-22),
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USPTO Data Jan 1 1976 - Jan 6 2026

3 Patents

#87 in Tianjin

#7,260 in China

...
Tianjin, China

Tianjin North Pharma Sci-Tech Co., Ltd

Forward Citations = 0

2 inventors:

goldMedal Yongfeng Wang (3 out of 10 patents)

silverMedal Kejun Zhao (3 out of 3 patents)

bronzeMedal Kejun No 32 Zhujiang Road Zhao (0 patent)

4.  Yongfeng C35 Third Floor No 7 Wang (0 patent)

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