DS

David R. Spreen

📍 Katy, TX: #1,203 of 2,042 inventorsTop 60%
🗺 Texas: #73,555 of 125,132 inventorsTop 60%
Overall (All Time): #2,930,179 of 4,157,543Top 75%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9564043 Automated firearm security measures to contact assistance Raymon Sanders, David Lee Sanders, Kenneth Conquest, Michael R. Saylor, Evan H. R. Spreen 2017-02-07