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USPTO Patent Rankings Data through Dec 31, 2025
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Zhenfen Yu — 3 Patents

UNUnknown: 6 patents #2,010 of 83,584Top 3%
Shanghai, CN: #5,051 of 19,267 inventorsTop 30%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Zhenfen Yu has been granted 3 US patents while listed as an inventor at Unknown. The first was granted in 1990 and the most recent in September 2025. Zhenfen Yu ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Zhenfen Yu in Shanghai, CN.

Patents per Year

Patents granted per year, 1990 to 2025Bar chart with a peak of 1 patents in 1990.peak 11990: 1 patents19902021: 1 patents20212025: 1 patents2025

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12419508 Optical observation equipment and method for identifying forming process of malignant tumor and endoscope Kun Zeng, Guozheng YAN, Wen-Jie Liu, Xiuzhang Wang, Zhiwu Wang +2 more 2025-09-23
10952618 Optical observation equipment and endoscope for identifying forming process of malignant tumor Kun Zeng, Guozheng YAN, Wen-Jie Liu, Xiuzhang Wang, Zhiwu Wang +2 more 2021-03-23
4957114 Diagnostic apparatus for intrinsic fluorescence of malignant tumor Kun Zeng, Jinrong Wu, SEN HEN YANG, Jiude Zhu 1990-09-18

Frequent Collaborators

Kun Zeng3 shared
Guozheng YAN2 shared
Zhiwu Wang2 shared
Pingping JIANG2 shared
Xiuzhang Wang2 shared
Dasheng LIU2 shared

Nearby-Ranked Inventors

Daniel Silion3
Hangfeng Li3
Mark Vander Wal3
Chad M. Goltzman3
Sathish Kumar Thanganathan3
Debbie Maloyd3
Ethan Alexander Garrett3
Paul Sabatka3
Sergii Bomko3