Ruhl A. Barker

📍 Monticello, IA: #6 of 13 inventorsTop 50%

🗺 Iowa: #8,735 of 15,303 inventorsTop 60%

Overall (All Time): #3,255,694 of 4,157,543Top 80%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
7975649	Livestock waterer	—	2011-07-12