WJ

W. Matthew Duffield, Jr.

AD Adf: 3 patents #1 of 6Top 20%
📍 Kearney, MO: #13 of 54 inventorsTop 25%
🗺 Missouri: #6,609 of 23,789 inventorsTop 30%
Overall (All Time): #1,524,951 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9199299 Penetrator and method of manufacturing same David M. Rose, Edward C. Spanknoble, Michael Ledestich 2015-12-01
8807001 Penetrator and method of manufacturing same David M. Rose, Edward C. Spanknoble, Michael Ledestich 2014-08-19
8567297 Penetrator and method of manufacture same David M. Rose, Edward C. Spanknoble, Michael Ledestich 2013-10-29