B61L 27/70
Details of trackside communication
B61L27/70 (Details of trackside communication) appears on 367 US grants and 497 published applications in this corpus.
Search patents in B61L- Granted patents
- 367
- Published applications
- 497
- Assignees
- 182
- Inventors
- 972
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 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 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 3 |
| 2004 | 1 | 2 |
| 2005 | 2 | 4 |
| 2006 | 2 | 0 |
| 2007 | 2 | 5 |
| 2008 | 0 | 1 |
| 2009 | 2 | 2 |
| 2010 | 1 | 1 |
| 2011 | 1 | 5 |
| 2012 | 4 | 5 |
| 2013 | 5 | 3 |
| 2014 | 4 | 12 |
| 2015 | 8 | 18 |
| 2016 | 11 | 28 |
| 2017 | 21 | 29 |
| 2018 | 19 | 27 |
| 2019 | 31 | 40 |
| 2020 | 27 | 55 |
| 2021 | 28 | 44 |
| 2022 | 37 | 41 |
| 2023 | 31 | 53 |
| 2024 | 41 | 38 |
| 2025 | 39 | 47 |
| 2026 | 38 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and systems for decentralized rail signaling and positive train control6 Oct 2026US 12,752,823 B2Metrom Rail, LLC
- Intrusion detection6 Oct 2026US 12,752,827 B2International Electronic Machines Corp.
- Method for carrying out an emergency stop for a train22 Sep 2026US 12,741,681 B2Siemens Mobility GmbH
- Sensor to sensor edge traffic inference, system and method22 Sep 2026US 12,741,683 B2Konux GmbH
- Systems and methods for railway asset management15 Sep 2026US 12,735,082 B2Amsted Rail Company, Inc.
- Apparatuses, systems, and methods for monitoring moving vehicles8 Oct 2026US 2026/0307693 A1Georgia Tech Research Corporation
- Monitoring system and method8 Oct 2026US 2026/0307694 A1Transportation IP Holdings, LLC
- Methods and systems for achieving vital ultra-wideband (uwb) based train control17 Sep 2026US 2026/0274312 A1Metrom Rail, LLC
- Vehicle control system and method17 Sep 2026US 2026/0274314 A1Transportation IP Holdings, LLC
- System and method for inferring vehicle route switch status17 Sep 2026US 2026/0274315 A1Transportation IP Holdings, LLC
Most cited
By later US patents
- Intelligent communications, command, and control system for a land-based vehicle83US 6,862,502 B2General Electric Company · 2005
- Facility for fail-safe data transmission between trackside equipment of a guideway and vehicles moving therealong50US 4,456,997 AInternational Standard Electric Corporation · 1984
- Rail communications system36US 6,830,224 B2Railroad Transportation Communication Technologies (RTCT) LLC · 2004
- Positive train control system and apparatus therefor36US 9,434,397 B2Panasec Corporation · 2016
- Vital serial link34US 5,919,237 AGeneral Railway Signal Corporation · 1999