IJ

Irene Johnson

📍 Decorah, IA: #10 of 30 inventorsTop 35%
🗺 Iowa: #6,094 of 15,303 inventorsTop 40%
Overall (All Time): #2,331,675 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4844466 Block puzzle Clarence W. Johnson 1989-07-04
4784392 Block puzzle Clarence W. Johnson 1988-11-15