JP

John D. Proper

📍 Brooks Road, CA: #789 of 1,361 inventorsTop 60%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #4,018,394 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4530048 VCR backup system 1985-07-16