SP

Stewart H. Presnall

LP Lyondell Petrochemical: 2 patents #7 of 32Top 25%
PP Phillips Petroleum: 1 patents #819 of 1,401Top 60%
📍 Borger, TX: #21 of 78 inventorsTop 30%
🗺 Texas: #40,946 of 125,132 inventorsTop 35%
Overall (All Time): #1,657,688 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5207894 Removal of aromatic color bodies from aromatic hydrocarbon streams Robert J. Haynal, Beverly B. Slimp, Jr., Martin P. Grosboll, Pamela A. Yanchik 1993-05-04
5081325 Purification of unsaturated hydrocarbon streams containing styrenics Robert J. Haynal, Beverly B. Slimp, Jr. 1992-01-14
4868336 Manufacture of disulfides 1989-09-19