B61L 23/047
Track or rail movements
Official title: {Track or rail movements}
B61L23/047 (Track or rail movements) appears on 187 US grants and 240 published applications in this corpus.
Search patents in B61L- Granted patents
- 187
- Published applications
- 240
- Assignees
- 124
- Inventors
- 465
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 4 |
| 2003 | 3 | 2 |
| 2004 | 2 | 3 |
| 2005 | 3 | 2 |
| 2006 | 2 | 4 |
| 2007 | 3 | 4 |
| 2008 | 2 | 0 |
| 2009 | 1 | 4 |
| 2010 | 3 | 1 |
| 2011 | 2 | 5 |
| 2012 | 1 | 8 |
| 2013 | 3 | 7 |
| 2014 | 4 | 17 |
| 2015 | 7 | 10 |
| 2016 | 6 | 11 |
| 2017 | 11 | 16 |
| 2018 | 13 | 15 |
| 2019 | 16 | 12 |
| 2020 | 16 | 24 |
| 2021 | 10 | 11 |
| 2022 | 10 | 9 |
| 2023 | 14 | 19 |
| 2024 | 19 | 13 |
| 2025 | 19 | 29 |
| 2026 | 3 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for detecting tanks in railway environments1 Sep 2026US 12,722,670 B2BNSF Railway Company
- Ground sensing utilizing active sources7 Jul 2026US 12,673,708 B2Focus Sensors Ltd.
- Train forewarning braking system13 Jan 2026US 12,522,267 B2
- Method and system for estimating temperature-related forces in railway lines11 Nov 2025US 12,466,451 B2KB Signaling Inc.
- Systems and methods for identifying potential deficiencies in railway environment objects14 Oct 2025US 12,441,377 B2BNSF Railway Company
- Rail vehicle and method for capturing a track gauge course24 Sep 2026US 2026/0285378 A1Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M. B. H.
- Prediction of cyclic top events20 Aug 2026US 2026/0241968 A1Network Rail Infrastructure Limited
- Systems and methods for identifying railroad track rails and determining railroad track characteristics using lidar13 Aug 2026US 2026/0235759 A1BNSF Railway Company
- Systems and methods for assessing track condition6 Aug 2026US 2026/0225630 A1Fnv IP B.V.
- System and method for monitoring level crossing30 Jul 2026US 2026/0220614 A1Hack Partners Limited
Most cited
By later US patents
- Automated track inspection vehicle and method122US 6,064,428 ANational Railroad Passenger Corporation · 2000
- Traffic control system utilizing on-board vehicle information measurement apparatus108US 5,332,180 AUnion Switch & Signal Inc. · 1994
- System for detecting broken rails and flat wheels in the presence of trains65US 5,743,495 AGeneral Electric Company · 1998
- Automated track inspection vehicle and method64US 6,356,299 B1National Railroad Passenger Corporation · 2002
- Geometric track and track/vehicle analyzers and methods for controlling railroad systems64US 7,164,975 B2Andian Technologies Ltd. · 2007