Inventor · disambiguated record
John F. Deppen
Also filed as: DEPPEN JOHN F
4 granted patents·153 citations·filing 1996–2004
80Inventor score
Technology areasB61G
Top patents by PatentIndex Score
4 records- 0193US6446820B1Railcar draft gear assembly and systemAMSTED IND INC·Filed 2000·Granted Sep 10, 2002·76 cites·27 claims
- 0291US6681943B2Railcar draft gear assembly and systemAMSTED IND INC·Filed 2002·Granted Jan 27, 2004·52 cites·18 claims
- 0356US6986432B2Common cast draft sill for type E and F draft gearASF KEYSTONE INC·Filed 2004·Granted Jan 17, 2006·8 cites·20 claims
- 0451US5746335ADouble acting center-of-car cushioning deviceKEYSTONE IND INC·Filed 1996·Granted May 5, 1998·17 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →