JR

John David Ringer

JD John Deere: 1 patents #83 of 307Top 30%
📍 Colfax, IA: #2 of 2 inventorsTop 100%
🗺 Iowa: #283 of 1,090 inventorsTop 30%
Overall (2004): #187,615 of 270,089Top 70%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6776355 Sprayer section control valve switching Richard A. Humpal 2004-08-17