PS

Philip V. Steed

PP Phillips Petroleum: 2 patents #574 of 1,401Top 45%
Overall (All Time): #2,313,088 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5171540 Catalyst regeneration Jan Wells 1992-12-15
4595397 Sample conditioning — 1986-06-17