DD

David H. Ditlefsen

DP Durex Products: 1 patents #1 of 3Top 35%
📍 Centuria, WI: #1 of 2 inventorsTop 50%
🗺 Wisconsin: #903 of 3,183 inventorsTop 30%
Overall (2003): #243,184 of 273,478Top 90%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6634505 Sieve bed for a sifting machine Kirk D. Sawall, Roland E. Küper 2003-10-21