DW

David J. Walters

📍 Erwin, TN: #4 of 19 inventorsTop 25%
🗺 Tennessee: #5,688 of 20,272 inventorsTop 30%
Overall (All Time): #1,581,852 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7377492 Hydraulic liquid pumping system Julius S. Vrana, William W. Timmons 2008-05-27
5797955 Pressure application unit for positioning vertebra 1998-08-25
5792085 Pressure application unit for positioning vertebra 1998-08-11