RL

Ronald F. Langham

BT Baker Oil Tools: 1 patents #43 of 87Top 50%
OE Otis Engineering: 1 patents #122 of 228Top 55%
📍 Carrollton, TX: #477 of 1,041 inventorsTop 50%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #2,359,383 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4467870 Fluid pressure actuator for subterranean well apparatus — 1984-08-28
4299281 Compensating bridge plug Olen R. Long 1981-11-10