B61D 19/001
Door arrangements specially adapted for rail vehicles: for wagons or vans
Official title: {for wagons or vans (closure elements for hopper car discharge openings B61D7/16; doors convertible into loading and unloading ramps B61D47/00; B61D19/003 takes precedence)}
B61D19/001 (Door arrangements specially adapted for rail vehicles: for wagons or vans) appears on 23 US grants and 32 published applications in this corpus.
Search patents in B61D- Granted patents
- 23
- Published applications
- 32
- Assignees
- 23
- Inventors
- 71
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 3 |
| 2015 | 2 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 9 |
| 2019 | 1 | 3 |
| 2020 | 4 | 2 |
| 2021 | 2 | 2 |
| 2022 | 1 | 2 |
| 2023 | 2 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Railroad car18 Aug 2026US 12,709,311 B2Gunderson LLC
- Door assemblies for insulated boxcars and refrigerated boxcars7 Oct 2025US 12,434,744 B2Gunderson LLC
- Railroad car and end door assembly therefor12 Nov 2024US 12,139,178 B2National Steel Car Limited
- Side wall for a rail vehicle25 Jul 2023US 11,708,096 B2Bombardier Transportation GmbH
- Lubricant-free vehicle door lock21 Feb 2023US 11,585,131 B2Transportation IP Holdings, LLC
- Door assemblies for railroad cars18 Sep 2025US 2025/0289483 A1Gunderson LLC
- Railroad car7 Nov 2024US 2024/0367698 A1Gunderson LLC
- Boxcar door mechanism20 Jun 2024US 2024/0199093 A1Trinity Rail Group, LLC
- Door assemblies for insulated boxcars and refrigerated boxcars14 Dec 2023US 2023/0399034 A1Gunderson LLC
- Door Assembly for Railcars24 Nov 2022US 2022/0371630 A1Trinity Rail Group, LLC
Most cited
By later US patents
- Pivotal slidable vehicle end enclosure34US 4,437,410 APortec, Inc. · 1984
- Insulated cargo container doors27US 7,434,520 B2Martin Marietta Materials, Inc. · 2008
- Structural panel19US 4,271,649 ABombardier Inc. · 1981
- Boxcar door having balsa core sandwich construction11US 5,016,395 AAera Transportation Products, Inc. · 1991
- Railroad car lubricant free door lock4US 9,863,172 B2Standard Car Truck Company · 2018