DJ

Dennis Johnston

📍 Ottumwa, IA: #6 of 20 inventorsTop 30%
🗺 Iowa: #283 of 1,090 inventorsTop 30%
Overall (2004): #234,855 of 270,089Top 90%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6813949 Pipeline inspection system Richard Masaniello, Stephen Christoffersen, Arthur Turner, John Broussard, John Kiefner 2004-11-09