DF

Douglas Field

DP Deka Products Limited Parternship: 2 patents #7 of 26Top 30%
📍 Burns Lake, CA: #4 of 73 inventorsTop 6%
Overall (2003): #69,694 of 273,478Top 30%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6561294 Balancing vehicle with passive pivotable support Dean Kamen, Robert R. Ambrogi, Robert J. Duggan, Richard Kurt Heinzmann 2003-05-13
6543564 Balancing personal vehicle Dean Kamen, Richard Kurt Heinzmann 2003-04-08