B61D 3/04
Wagons or vans: with movable floors
Official title: with movable floors, e.g. rotatable or floors which can be raised or lowered
B61D3/04 (Wagons or vans: with movable floors) appears on 64 US grants and 56 published applications in this corpus.
Search patents in B61D- Granted patents
- 64
- Published applications
- 56
- Assignees
- 36
- Inventors
- 104
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 1 |
| 2004 | 1 | 0 |
| 2005 | 2 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 0 | 4 |
| 2018 | 1 | 2 |
| 2019 | 5 | 10 |
| 2020 | 6 | 9 |
| 2021 | 9 | 8 |
| 2022 | 4 | 2 |
| 2023 | 2 | 2 |
| 2024 | 5 | 4 |
| 2025 | 0 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Article transport device29 Sep 2026US 12,746,952 B2Daifuku Co., Ltd.
- Modular coil railcar31 Dec 2024US 12,179,811 B2Trinity Rail Group, LLC
- Railway wagon for transportation of semi-trailers and the like24 Dec 2024US 12,172,682 B2Helrom GmbH
- Railway wagon for transportation of semi-trailers and the like12 Nov 2024US 12,139,179 B2Helrom GmbH
- Method for controlling the vertical position of a vehicle and associated control assembly15 Oct 2024US 12,116,025 B2Alstom Transport Technologies
- Rail based mobility systems and methods of installation and use1 May 2025US 2025/0137205 A1
- Modular Coil Railcar6 Mar 2025US 2025/0074480 A1Trinity Rail Group, LLC
- Railway wagon for transportation of semi-trailers and the like23 Jan 2025US 2025/0026385 A1Helrom GmbH
- Article transport device12 Dec 2024US 2024/0409131 A1Daifuku Co., Ltd.
- Railway wagon with improved launch beam positioning16 May 2024US 2024/0157982 A1Helrom GmbH
Most cited
By later US patents
- Railroad freight car for carrying motor vehicles55US 5,743,192 AGunderson LLC · 1998
- Load divider assembly and door assembly for a composite railway boxcar54US 5,802,984 ATrinity Industries, Inc. · 1998
- Modular articulated railcar50US 5,622,115 AWabash National, L. P. · 1997
- Bi-tri-level deck system for a railcar41US 5,685,228 AWabash National, L. P. · 1997
- Railway car counterbalanced tilting deck35US 4,119,042 APullman Incorporated · 1978