B61L 17/02
Details
Official title: Details, e.g. indicating degree of track filling
B61L17/02 (Details) appears on 30 US grants and 45 published applications in this corpus.
Search patents in B61L- Granted patents
- 30
- Published applications
- 45
- Assignees
- 23
- Inventors
- 130
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 3 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 2 | 0 |
| 2012 | 3 | 3 |
| 2013 | 1 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 2 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 4 | 2 |
| 2021 | 0 | 2 |
| 2022 | 1 | 4 |
| 2023 | 0 | 4 |
| 2024 | 4 | 5 |
| 2025 | 6 | 8 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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
- Rail yard train-switching system, control device, and control method10 Feb 2026US 12,545,305 B2Mitsubishi Electric Corporation
- Method and systems for an automated railyard16 Sep 2025US 12,415,551 B2Transportation IP Holdings, LLC
- Time-space network based multi-objective systems and methods for optimal rail car stacking at a railroad merchandise yard15 Jul 2025US 12,358,543 B2BNSF Railway Company
- Monitoring system and method8 Oct 2026US 2026/0307694 A1Transportation IP Holdings, LLC
- 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
- Systems and methods for detecting applied railcar brakes using thermal imaging26 Feb 2026US 2026/0054755 A1BNSF Railway Company
- Time-space network based multi-objective systems and methods for optimal rail car stacking at a railroad merchandise yard27 Nov 2025US 2025/0360953 A1BNSF Railway Company
Most cited
By later US patents
- Railway car retarder system40US 5,676,337 AUnion Switch & Signal Inc. · 1997
- Monitoring status of railyard equipment using wireless sensing devices12US 7,388,483 B2General Electric Company · 2008
- Operations monitoring in an area11US 10,597,053 B2International Electronic Machines Corp. · 2020
- Tracking rolling stock in a controlled area of a railway8US 8,296,000 B2Railcomm, LLC · 2012
- System and method for forecasting the composition of an outbound train in a switchyard6US 8,332,086 B2Canadian National Railway Company · 2012