Lawrence A. Ryan

PP Phillips Petroleum: 3 patents #450 of 1,401Top 35%

📍 Bartlesville, OK: #504 of 1,143 inventorsTop 45%

🗺 Oklahoma: #3,359 of 12,736 inventorsTop 30%

Overall (All Time): #1,680,159 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4529484	Fractional distillation column control	—	1985-07-16
4417311	Fractional distillation column control	—	1983-11-22
4380317	Furnace control	—	1983-04-19