Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Chee K. Han — 3 Patents

QUQuantum: 1 patents #325 of 703Top 50%
Milpitas, CA: #1,317 of 3,192 inventorsTop 45%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Chee K. Han has been granted 3 US patents while listed as an inventor at Quantum. The first was granted in 1996 and the most recent in December 2025. Chee K. Han ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Chee K. Han in Milpitas, CA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12500273 Electrolytic solution, secondary battery, and power consumption apparatus Lei Huang, Zeli Wu, Cuiping Zhang 2025-12-16
12469887 Lithium-ion battery, battery, and electric apparatus Zeli Wu, Bingshan Jiang, Jian-Hwa Guo 2025-11-11
5526208 Flex circuit vibration sensor Michael R. Hatch, Joseph T. Castagna 1996-06-11 $5,102,000