ER

Edward A. Ryks

TG The Shivvers Group: 3 patents #5 of 15Top 35%
📍 Corydon, IA: #4 of 14 inventorsTop 30%
🗺 Iowa: #4,661 of 15,303 inventorsTop 35%
Overall (All Time): #1,666,622 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4896506 Transmission with integrated gear reduction Charles C. Shivvers, Steven D. Shivvers, Richard A. Arnold 1990-01-30
4845949 Parking brake for integrated transmission Charles C. Shivvers, Steven D. Shivvers, Richard A. Arnold 1989-07-11
4843817 Integrated hydraulic transmission Charles C. Shivvers, Steven D. Shivvers, Richard A. Arnold 1989-07-04