DE

Douglas B. Elkow

📍 Edmonton, CA: #662 of 2,912 inventorsTop 25%
Overall (All Time): #1,604,172 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6733088 Variable-diameter wheel apparatus for motor vehicles — 2004-05-11
6637834 Variable-diameter wheel apparatus for motor vehicles — 2003-10-28
6615888 Variable-diameter wheel-and-tire apparatus for motor vehicles — 2003-09-09