David A. Robertson

📍 Manitowoc, WI: #9 of 31 inventorsTop 30%

🗺 Wisconsin: #1,578 of 4,723 inventorsTop 35%

Overall (2021): #480,017 of 548,734Top 90%

Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
11167713	Roll-over protection apparatus	—	2021-11-09