FP

Frank J. Petkewicz

GL Gte Automatic Electric Labs: 2 patents #23 of 73Top 35%
📍 Chicago, IL: #5,168 of 13,327 inventorsTop 40%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,365,997 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4322708 Electromagnetic device utilizing a pair of magnetically activated electronic switches Kenneth H. Oehrig 1982-03-30
4322709 Adjustable flux generator a magnetically activated electronic switch David L. Vonder 1982-03-30