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USPTO Patent Rankings Data through Sept 30, 2025
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Guangfeng Chen — 1 Patent

Overall (All Time): #2,997,182 of 4,157,543Top 75%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9321995 Stem cell culture medium and its applications as well as a stem cell culture method Xiaoqing Liu, Ming Ying, Longpo Zheng 2016-04-26