B61D 23/00
Construction of steps for railway vehicles
Official title: Construction of steps for railway vehicles (ladders in general E06C)
B61D23/00 (Construction of steps for railway vehicles) appears on 130 US grants and 136 published applications in this corpus.
Search patents in B61D- Granted patents
- 130
- Published applications
- 136
- Assignees
- 81
- Inventors
- 256
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 4 | 2 |
| 2003 | 3 | 3 |
| 2004 | 1 | 1 |
| 2005 | 2 | 4 |
| 2006 | 2 | 1 |
| 2007 | 2 | 1 |
| 2008 | 2 | 7 |
| 2009 | 1 | 3 |
| 2010 | 4 | 5 |
| 2011 | 6 | 4 |
| 2012 | 4 | 4 |
| 2013 | 3 | 2 |
| 2014 | 1 | 4 |
| 2015 | 4 | 8 |
| 2016 | 3 | 5 |
| 2017 | 3 | 10 |
| 2018 | 9 | 14 |
| 2019 | 7 | 10 |
| 2020 | 3 | 7 |
| 2021 | 6 | 9 |
| 2022 | 8 | 4 |
| 2023 | 9 | 10 |
| 2024 | 5 | 8 |
| 2025 | 3 | 5 |
| 2026 | 8 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Foldable stair assembly8 Sep 2026US 12,728,899 B2Safesmart LLC
- Attachment part for a rail vehicle18 Aug 2026US 12,709,312 B2Siemens Mobility GmbH
- End cab switcher locomotive4 Aug 2026US 12,698,012 B2Siemens Mobility GmbH
- Tread step seal assembly for a tread system of a vehicle23 Jun 2026US 12,662,173 B2Bode—Die TüR GmbH
- Step device for a rail vehicle7 Apr 2026US 12,594,973 B2Siemens Mobility GmbH
- Door leaf with integrated folding step for a vehicle25 Jun 2026US 2026/0175781 A1Bode—Die TüR GmbH
- Cleaning device for access systems, in particular for sliding steps on vehicles18 Jun 2026US 2026/0167157 A1Bode—Die TüR GmbH
- Folding staircase8 Jan 2026US 2026/0009230 A1Morryde International, Inc.
- Boarding system with adapter frame4 Sep 2025US 2025/0276647 A1Bode—Die TüR GmbH
- Foldable stair assembly3 Jul 2025US 2025/0215694 A1Safesmart LLC
Most cited
By later US patents
- Movable steps for a transit vehicle96US 3,957,284 AThe Boeing Company · 1976
- Retractable running-board, especially for a railway car door93US 4,188,889 AFaiveley S.A. · 1980
- Multi-level folding step for track-bound vehicles88US 5,154,125 AMan GHH Schienenverkehrstechnik GmbH · 1992
- Entry stairs for vehicles84US 4,424,751 ASIG Schweizerische Industrie-Gesellschaft · 1984
- Drive arrangement for transport vehicles67US 4,068,542 AWaggonfabrik Uerdingen A.G. · 1978