JJ

John R. Janzen

📍 Cincinnati, OH: #4,941 of 8,043 inventorsTop 65%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #3,773,354 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5425542 Illuminated projectile James Blackwood 1995-06-20