Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Kaiping Ran — 2 Patents

O2O2Micro: 2 patents #94 of 174Top 55%
Fremont, CA: #5,132 of 9,298 inventorsTop 60%
California: #187,151 of 386,348 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Kaiping Ran has been granted 2 US patents while listed as an inventor at O2Micro. The first was granted in 2012 and the most recent in January 2021. Kaiping Ran ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Kaiping Ran in Fremont, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10893591 Controllers, systems, and methods for driving a light source Sheng Tai Lee 2021-01-12
8248439 Backlight controller for driving light sources Da Liu, Yung-Lin Lin 2012-08-21