RH

Rolfe J. Hartley

EA Ethyl Petroleum Additives: 1 patents #3 of 4Top 75%
📍 Lemay, MO: #1 of 2 inventorsTop 50%
🗺 Missouri: #150 of 859 inventorsTop 20%
Overall (1989): #63,115 of 140,708Top 45%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4857214 Oil-soluble phosphorus antiwear additives for lubricants Andrew G. Papay 1989-08-15