Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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John E. DeFiore — 3 Patents

MAMaxoptix: 1 patents #8 of 17Top 50%
MLMicro Linear: 1 patents #19 of 45Top 45%
Sunnyvale, CA: #6,613 of 14,302 inventorsTop 50%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
John E. DeFiore has been granted 3 US patents while listed as an inventor at Maxoptix. The first was granted in 1994 and the most recent in June 1998. John E. DeFiore ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John E. DeFiore in Sunnyvale, CA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5767653 Variable speed AC induction motor controller Daniel D. Culmer 1998-06-16 $751,000
5475296 Digitally controlled switchmode power supply Ronald Vinsant 1995-12-12
5355356 Charge pump for restoring DC in an optical recording read channel Donald F. Johann 1994-10-11