CK

Charles N. Klettenberg

📍 Maple Grove, MN: #593 of 1,211 inventorsTop 50%
🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%
Overall (All Time): #2,120,174 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7695268 System and method for manufacturing concrete blocks 2010-04-13
D500864 Ornamental face for retaining wall block John H. Miller 2005-01-11