DC

David Caulfield

📍 Sherwood Park, CA: #117 of 486 inventorsTop 25%
Overall (All Time): #1,598,022 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6870791 Acoustic portal detection system Michael Curran, Robert Tarini 2005-03-22
6545945 Material classification apparatus and method 2003-04-08
4922467 Acoustic detection apparatus 1990-05-01