JD

John F. Deppen

AI Amsted Industries Incorporated: 2 patents #58 of 219Top 30%
AK Asf Keystone: 1 patents #10 of 21Top 50%
KI Keystone Industries: 1 patents #6 of 11Top 55%
📍 New Cumberland, PA: #14 of 68 inventorsTop 25%
🗺 Pennsylvania: #19,182 of 74,527 inventorsTop 30%
Overall (All Time): #1,256,979 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6986432 Common cast draft sill for type E and F draft gear Paul Limbach, Andrew G. Kurtyak, John F. Oesch 2006-01-17
6681943 Railcar draft gear assembly and system Ronald E. Barker, Charles E. Burkhart, Marlin E. Clark, V. Terrey Hawthorne, Horst T. Kaufhold +3 more 2004-01-27
6446820 Railcar draft gear assembly and system Ronald E. Barker, Charles E. Burkhart, Marlin E. Clark, V. Terrey Hawthorne, Horst T. Kaufhold +3 more 2002-09-10
5746335 Double acting center-of-car cushioning device Steve A. Brough 1998-05-05