DR

Donald G. Ralston

FI Fisher Controls International: 1 patents #9 of 29Top 35%
📍 Conrad, IA: #1 of 1 inventorsTop 100%
🗺 Iowa: #283 of 1,090 inventorsTop 30%
Overall (2004): #231,547 of 270,089Top 90%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6793197 Butterfly valve Charles L. DePenning, Hans D. Baumann 2004-09-21