DR

David A. Robertson

📍 Manitowoc, WI: #7 of 18 inventorsTop 40%
🗺 Wisconsin: #1,040 of 3,572 inventorsTop 30%
Overall (2011): #320,103 of 364,097Top 90%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7950696 Roll-over protection system Robert J. Parkinson 2011-05-31