DK

Donald M. Knaack

DS Diamond Shamrock: 1 patents #74 of 172Top 45%
📍 Mentor, OH: #417 of 709 inventorsTop 60%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #4,056,160 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4399020 Device for waste water treatment Kenneth J. Branchick, Irving Malkin, Robert C. Sutter, Karel A. Korinek, Mary R. Suchanski +1 more 1983-08-16