DH

David L. Hopkins

TL The Lubrizol: 1 patents #5 of 40Top 15%
📍 Mentor, OH: #7 of 52 inventorsTop 15%
🗺 Ohio: #715 of 3,574 inventorsTop 25%
Overall (1989): #122,920 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4836857 Asphalt additive compositions — 1989-06-06