DD

Donald F. Lewis, deceased

📍 Grass Valley, CA: #121 of 334 inventorsTop 40%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,358,498 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4454658 Device to locate communication satellites by Sheri Lewis, administrator 1984-06-19
4288922 Device to indicate solar exposure — 1981-09-15