JK

John M. Kapphahn

📍 Orr, MN: #2 of 6 inventorsTop 35%
🗺 Minnesota: #2,461 of 6,786 inventorsTop 40%
Overall (2016): #348,660 of 481,213Top 75%
1
Patents 2016

Issued Patents 2016

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9451741 Vacuum planter exhaust filtration system — 2016-09-27