JR

James T. Roark

OE Otis Engineering: 1 patents #122 of 228Top 55%
📍 Dallas, TX: #4,358 of 7,543 inventorsTop 60%
🗺 Texas: #73,555 of 125,132 inventorsTop 60%
Overall (All Time): #4,068,404 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4325534 Manually operated blowout preventer and hydraulic operator therefor Steven R. Hayter 1982-04-20