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USPTO Patent Rankings Data through Dec 31, 2025
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Kejian Fu — 4 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Toronto, CA: #2,055 of 9,482 inventorsTop 25%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Kejian Fu has been granted 4 US patents while listed as an inventor at Unknown. The first was granted in 1997 and the most recent in October 2025. Kejian Fu ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Kejian Fu in Toronto, ON, CA.

Patents per Year

Patents granted per year, 1997 to 2003Bar chart with a peak of 1 patents in 1997.peak 11997: 1 patents19971998: 1 patents19982003: 1 patents2003

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12445727 Acoustic eavesdropping using a smartphone camera Yan Long, Kevin A. Butler, Sara Rampazzi, Pirouz Naghavi 2025-10-14
6635490 Procedure for the simultaneous quantitative and qualitative analysis of both flavonoid glycosides and steroidal glycosides Maciej Kaminski, Jessica Liu 2003-10-21
5824368 Process of diamond growth from C.sub.70 Martin Moskovits 1998-10-20
5614258 Process of diamond growth from C.sub.70 Martin Moskovits, Xijia Gu 1997-03-25

Frequent Collaborators

Martin Moskovits2 shared
Pirouz Naghavi1 shared
Maciej Kaminski1 shared
Jessica Liu1 shared
Sara Rampazzi1 shared
Kevin A. Butler1 shared

Nearby-Ranked Inventors

Jagadeesh Kandasamy4
Ross CABOT4
George Ueda4
Franz A. Gruswitz4
Tommy Glimberg4
Vinayakaraddy Gulabal4
Sandra Bittorf4
Aviel FOGEL4
Eric Matthew Walton4