Inventor · disambiguated record
John W. Coulborn
Also filed as: COULBORN JOHN W
18 granted patents·2 pending applications·775 citations·filing 1985–2019
96Inventor score
Files withTRN BUSINESS TRUST10ACF IND INC4TRINITY IND INC2TRINITY NORTH AMERICAN FREIGHT CAR INC2ACF IND INCORPORATED1
Top patents by PatentIndex Score
20 records- 0196US5765485AInsulated composite railway boxcar and methodTRINITY IND INC·Filed 1996·Granted Jun 16, 1998·115 cites·18 claims
- 0295US5890435AInsulated composite railway boxcar and methodTRN BUSINESS TRUST·Filed 1997·Granted Apr 6, 1999·91 cites·16 claims
- 0392US6092472AComposite box structure for a railway carTRN BUSINESS TRUST·Filed 1998·Granted Jul 25, 2000·85 cites·20 claims
- 0492US5802984ALoad divider assembly and door assembly for a composite railway boxcarTRINITY IND INC·Filed 1996·Granted Sep 8, 1998·87 cites·23 claims
- 0588US6371033B1High capacity integrated railway car truckTRN BUSINESS TRUST·Filed 1999·Granted Apr 16, 2002·72 cites·20 claims
- 0685US6000342ARailway car underframe for an insulated composite boxcarTRN BUSINESS TRUST·Filed 1997·Granted Dec 14, 1999·55 cites·20 claims
- 0782US6704991B1Method for forming a railway car with improved crosstie connectionsTRN BUSINESS TRUST·Filed 2000·Granted Mar 16, 2004·31 cites·9 claims
- 0880US5857414AComposite box structure for a railway carTRN BUSINESS TRUST·Filed 1996·Granted Jan 12, 1999·60 cites·26 claims
- 0979US6302031B1Sidewall for a railway carTRN BUSINESS TRUST·Filed 1999·Granted Oct 16, 2001·42 cites·15 claims
- 1079US5855174ARailway car underframe for an insulated railway boxcarTRN BUSINESS TRUST·Filed 1997·Granted Jan 5, 1999·33 cites·5 claims
- 1172US4646653ACorner fitting for open top railroad carACF IND INC·Filed 1985·Granted Mar 3, 1987·35 cites·2 claims
- 1267US11465657B2Twenty-foot double stack well carTRINITY NORTH AMERICAN FREIGHT CAR INC·Filed 2018·Granted Oct 11, 2022·1 cites·20 claims
- 1366US4922833AEnd structure for railway carACF IND INC·Filed 1987·Granted May 8, 1990·16 cites·5 claims
- 1462US4875417AEnd structure for railway carACF IND INC·Filed 1987·Granted Oct 24, 1989·14 cites·5 claims
- 1554US6189456B1High capacity axle for railway freight carsTRN BUSINESS TRUST·Filed 1998·Granted Feb 20, 2001·16 cites·9 claims
- 1649US4944233AHatch arrangement for covered hopper carsACF IND INC·Filed 1989·Granted Jul 31, 1990·11 cites·15 claims
- 1747US6138581ARailway gondola carTRN BUSINESS TRUST·Filed 1998·Granted Oct 31, 2000·11 cites·34 claims
- 1846US2019248384A1Truss Plate Side Sheet AssemblyTRINITY NORTH AMERICAN FREIGHT CAR INC·Filed 2019·Application pending·0 cites
- 1929US2003029353A1Floor support connection castingTRN BUSINESS TRUST A DELAWARE·Filed 2001·Application pending·0 cites
- 2025USD317277SEnd segment of a railway carACF IND INCORPORATED·Filed 1987·Granted Jun 4, 1991·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →