DK

David P. Knivsland

3M: 1 patents #327 of 1,069Top 35%
📍 North St. Paul, MN: #4 of 17 inventorsTop 25%
🗺 Minnesota: #813 of 3,156 inventorsTop 30%
Overall (1997): #162,902 of 185,788Top 90%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D378610 Full face respirator Joseph G. Reischel, Gerald M. Brostrom, David C. Byram, Vaughn B. Grannis 1997-03-25