JC

John C. Crumm

📍 Santa Monica, CA: #1,639 of 3,628 inventorsTop 50%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,370,017 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4287477 Feedback arrangement George C. Carlsen, II, Koji Matsuda 1981-09-01
4259011 Optical gem analyzer George D. Carlsen, II 1981-03-31