JH

John W. Helbron

GD General Dynamics Corp., Pomona Division: 1 patents #55 of 140Top 40%
📍 Upland, CA: #211 of 401 inventorsTop 55%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #4,048,291 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4372239 Undersea weapon with hydropulse system and periodical seawater admission Allen C. Hagelberg, Clark E. Allardt, Walter A. Lobitz, Robert Thornburg, George F. Zimmerman +1 more 1983-02-08