B61K 5/04
Devices secured to the track
B61K5/04 (Devices secured to the track) appears on 37 US grants and 27 published applications in this corpus.
Search patents in B61K- Granted patents
- 37
- Published applications
- 27
- Assignees
- 25
- Inventors
- 68
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 2 |
| 2010 | 2 | 2 |
| 2011 | 3 | 3 |
| 2012 | 1 | 2 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 2 |
| 2017 | 1 | 2 |
| 2018 | 2 | 0 |
| 2019 | 2 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 2 |
| 2022 | 2 | 1 |
| 2023 | 0 | 1 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Derailing system3 Feb 2026US 12,539,899 B2Westinghouse Air Brake Technologies Corporation
- Derail warning light system15 Oct 2024US 12,116,029 B2Railserve, Inc.
- Universal track derailer assembly13 Feb 2024US 11,897,523 B2Western-Cullen-Hayes, Inc.
- Derail warning light system2 Aug 2022US 11,400,963 B2Focused Technology Solutions, Inc.
- Derailing device17 May 2022US 11,332,171 B2Westinghouse Air Brake Technologies Corporation
- Battery operated lift jack for railways26 Mar 2026US 2026/0084943 A1FTS Tools, LLC
- Derail Warning Light System3 Jul 2025US 2025/0214634 A1Railserve, Inc.
- Derail Warning Light System18 May 2023US 2023/0150558 A1Railserve, Inc.
- Derailing system11 Aug 2022US 2022/0250663 A1Westinghouse Air Brake Technologies Corporation
- Universal Track Derailer Assembly26 Aug 2021US 2021/0261175 A1Western-Cullen-Hayes, Inc.
Most cited
By later US patents
- In-train wheel changing device12US 5,876,018 A1999
- Split rail trolley system11US 7,900,562 B2Macton Corporation · 2011
- Portable derail9US 4,165,060 AWestern-Cullen-Hayes, Inc. · 1979
- Lightweight and ultra-lightweight portable derails9US 6,105,906 AWestern-Cullen-Hayes, Inc. · 2000
- Double end derail8US 6,202,564 B1Western-Cullen-Hayes, Inc. · 2001