RN

Ralph Nagel

📍 Berkeley, CA: #1,792 of 3,731 inventorsTop 50%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,085,222 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8109820 Methods and apparatus for chess instruction Joseph Nagel 2012-02-07
5678001 Computerized game teaching method Roger Roberts 1997-10-14