Donald R. Van Grinsven

📍 Combined Locks, WI: #20 of 37 inventorsTop 55%

🗺 Wisconsin: #23,834 of 40,088 inventorsTop 60%

Overall (All Time): #4,090,030 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4269164	Swing-a-way camp grill	Michael H. Winius	1981-05-26