MD

Michael Duff

📍 Fremont, CA: #5,063 of 9,298 inventorsTop 55%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #1,995,204 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9830892 Frog for bow for stringed musical instrument — 2017-11-28
7417624 Zero-force key activation keyboard with dynamic individual key illumination — 2008-08-26