HD

Henry J. Duff

📍 Calgary, CA: #2,769 of 5,407 inventorsTop 55%
Overall (All Time): #3,336,267 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7593557 Methods of signal processing of data Daniel Roach, Robert Stanley Sheldon 2009-09-22