DD

Dan Dvorak

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Toronto, CA: #5,171 of 9,482 inventorsTop 55%
Overall (All Time): #3,643,842 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5879124 Vehicle with retractible rear wheel assembly Gerardus J. Brouwer 1999-03-09