B61L 13/04
Operation of signals from the vehicle or by the passage of the
Official title: using electrical or magnetic interaction between vehicle and track {, e.g. by conductor circuits using special means or special conductors}
B61L13/04 (Operation of signals from the vehicle or by the passage of the) appears on 23 US grants and 25 published applications in this corpus.
Search patents in B61L- Granted patents
- 23
- Published applications
- 25
- Assignees
- 24
- Inventors
- 48
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 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 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 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 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 3 | 0 |
| 2018 | 1 | 6 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
| 2021 | 2 | 1 |
| 2022 | 0 | 5 |
| 2023 | 1 | 2 |
| 2024 | 3 | 2 |
| 2025 | 2 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Railway detection system, railway infrastructure and method for detecting the presence of a railway vehicle2 Jun 2026US 12,643,583 B2
- System and method for guidance control on a wheeled bogie6 Jan 2026US 12,515,717 B2Dp World Logistics US Holdings, Inc.
- System and method for traversing a non-moving rail switch using electromagnetic engines6 May 2025US 12,291,249 B2Hyperloop Technologies, Inc.
- System and method for rail scanning using electromagnetic engines11 Mar 2025US 12,246,762 B2Hyperloop Technologies, Inc.
- Computer implemented method for determining railway vehicle movement profile type of a railway vehicle movement profile and controller of a track circuit system31 Dec 2024US 12,179,815 B2ALSTOM Holdings
- Computer implemented method for determining railway vehicle movement profile type of a railway vehicle movement profile and controller of a track circuit system20 Mar 2025US 2025/0091625 A1ALSTOM Holdings
- Computer implemented method for determining railway vehicle movement profile type of a railway vehicle movement profile and controller of a track circuit system13 Feb 2025US 2025/0050922 A1Alstom Transport Technologies
- Railway detection system, railway infrastructure and method for detecting the presence of a railway vehicle9 May 2024US 2024/0149931 A1ALSTOM Holdings
- Linear induction motor drive for a high-speed transportation system28 Mar 2024US 2024/0101170 A1Hamilton Sundstrand Corporation
- Linear transport apparatus12 Oct 2023US 2023/0322275 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- Method and apparatus for controlling a vehicle28US 4,726,299 ARegents of the University of Minnesota · 1988
- Arrangement for a passive responder for a position finding system12US 3,940,765 ASiemens Aktiengesellschaft · 1976
- Vehicle protection system10US 4,742,460 AWestinghouse Brake & Signal Co. Ltd. · 1988
- Wayside signaling system for railroad cab signals and speed control9US 4,046,342 AWestinghouse Air Brake Company · 1977
- Method and apparatus for controlling railway safety systems3US 8,870,126 B2Siemens Aktiengesellschaft · 2014