JJ

John J. Jecmen

📍 Oak Brook, IL: #74 of 167 inventorsTop 45%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,344,846 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4696375 Chain break safety device Ronald D. Matthews 1987-09-29
4224767 Fire stop safety astragal James M. Jecmen, deceased 1980-09-30