SM

Stanley Marchewka

TH The Hirsh: 1 patents #6 of 10Top 60%
📍 Chicago, IL: #5,168 of 13,327 inventorsTop 40%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,187,135 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6688148 Manufacturing process for making engine components of high carbon content steel using cold forming techniques Raymond C. Hartzell, Jeffrey A. Buck 2004-02-10
4820235 Threaded fastener David S. Weber 1989-04-11