JG

John D. Graves

HH Hughes Helicopters: 1 patents #11 of 26Top 45%
📍 Rancho Palos Verdes, CA: #1,021 of 1,701 inventorsTop 65%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #4,001,174 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4609165 Helicopter auxiliary energy system Andrew H. Logan 1986-09-02