B61L 17/00
Switching systems for classification yards
B61L17/00 (Switching systems for classification yards) appears on 133 US grants and 167 published applications in this corpus.
Search patents in B61L- Granted patents
- 133
- Published applications
- 167
- Assignees
- 59
- Inventors
- 286
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 4 | 4 |
| 2003 | 2 | 6 |
| 2004 | 4 | 6 |
| 2005 | 4 | 7 |
| 2006 | 2 | 0 |
| 2007 | 5 | 21 |
| 2008 | 4 | 8 |
| 2009 | 4 | 5 |
| 2010 | 12 | 8 |
| 2011 | 6 | 1 |
| 2012 | 6 | 9 |
| 2013 | 4 | 3 |
| 2014 | 3 | 7 |
| 2015 | 5 | 3 |
| 2016 | 4 | 5 |
| 2017 | 2 | 6 |
| 2018 | 2 | 5 |
| 2019 | 6 | 5 |
| 2020 | 9 | 5 |
| 2021 | 4 | 3 |
| 2022 | 5 | 7 |
| 2023 | 2 | 6 |
| 2024 | 7 | 11 |
| 2025 | 8 | 18 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for efficiently switching railcars in a railroad yard6 Oct 2026US 12,752,826 B2BNSF Railway Company
- Control system and method for a transportation network5 May 2026US 12,617,438 B2Transportation IP Holdings, LLC
- Railyard train detection and early warning system14 Apr 2026US 12,600,390 B2Miller Felpax Corporation
- Method for improving shunting route setting of centralized traffic control system, device and medium31 Mar 2026US 12,589,786 B2Casco Signal Ltd.
- Vehicle parking control method and apparatus10 Feb 2026US 12,545,303 B2BYD Company Limited
- Monitoring system and method8 Oct 2026US 2026/0307694 A1Transportation IP Holdings, LLC
- Systems and methods for monitoring and validating status of retarder devices13 Aug 2026US 2026/0233768 A1BNSF Railway Company
- Method and system for obstacle identification during and after train coupling30 Jul 2026US 2026/0217292 A1Siemens Mobility GmbH
- Vehicle control system11 Jun 2026US 2026/0159142 A1Transportation IP Holdings, LLC
- Methods and systems for railcar content analysis and allocation management9 Apr 2026US 2026/0097796 A1CSX Transportation, Inc.
Most cited
By later US patents
- Method and apparatus of monitoring a railroad hump yard86US 6,856,865 B2New York Air Brake Corporation · 2005
- Remote control system for a locomotive80US 5,685,507 ACanac International, Inc. · 1997
- Method of determining railyard status using locomotive location79US 6,377,877 B1GE Harris Railway Electronics, LLC · 2002
- Method and apparatus of monitoring a railroad hump yard70US 6,789,005 B2New York Air Brake Corporation · 2004
- Remote control system for a locomotive64US 5,511,749 ACanac International, Inc. · 1996