DE

David A. Evens

CO Conoco: 1 patents #310 of 638Top 50%
📍 Cloquet, MN: #25 of 125 inventorsTop 20%
🗺 Minnesota: #19,064 of 52,454 inventorsTop 40%
Overall (All Time): #1,658,713 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5236475 Papermaking apparatus including baffles — 1993-08-17
4906334 Broke pulping apparatus and reel stand with brake — 1990-03-06
4416323 Air cooler freeze protection — 1983-11-22