DW

David J. Warrender

📍 Sebastopol, CA: #96 of 246 inventorsTop 40%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,342,017 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4656507 Quad-edge video signal detector John O. B. Greaves 1987-04-07
4429609 Pitch analyzer — 1984-02-07