GC

Grover R. Campbell

PP Phillips Petroleum: 1 patents #819 of 1,401Top 60%
📍 Old Ocean, TX: #3 of 8 inventorsTop 40%
🗺 Texas: #73,555 of 125,132 inventorsTop 60%
Overall (All Time): #4,125,831 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4239517 Fractionator feed tank pressure control James W. Hobbs 1980-12-16