DH

David H. Hopkins

DS Desalination Systems: 1 patents #2 of 3Top 70%
📍 Camptown, PA: #1 of 1 inventorsTop 100%
🗺 Pennsylvania: #852 of 3,759 inventorsTop 25%
Overall (1989): #122,919 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4842736 Spiral wound membrane Donald T. Bray 1989-06-27