JO

Joseph P. O'Brien

EA Ethyl Petroleum Additives: 1 patents #3 of 4Top 75%
📍 Kirkwood, MO: #5 of 13 inventorsTop 40%
🗺 Missouri: #150 of 859 inventorsTop 20%
Overall (1989): #93,719 of 140,708Top 70%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4855074 Homogeneous additive concentrates and their formation Andrew G. Papay 1989-08-08