RJ

Ronald A. Johnsen

📍 Rockford, IL: #538 of 1,291 inventorsTop 45%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,284,901 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5419361 Fluid pressure actuated flow control valve Norman E. Caudle, Guy A. Jang 1995-05-30
5392807 Fluid pressure actuated flow control valve Norman E. Caudle, Guy A. Jang 1995-02-28