B61L 15/0027
Radio-based
Official title: {Radio-based, e.g. using GSM-R}
B61L15/0027 (Radio-based) appears on 698 US grants and 867 published applications in this corpus.
Search patents in B61L- Granted patents
- 698
- Published applications
- 867
- Assignees
- 234
- Inventors
- 1,396
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 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 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 5 |
| 2003 | 5 | 9 |
| 2004 | 4 | 5 |
| 2005 | 8 | 12 |
| 2006 | 11 | 10 |
| 2007 | 2 | 7 |
| 2008 | 3 | 5 |
| 2009 | 1 | 7 |
| 2010 | 5 | 15 |
| 2011 | 4 | 11 |
| 2012 | 15 | 21 |
| 2013 | 15 | 37 |
| 2014 | 29 | 47 |
| 2015 | 35 | 46 |
| 2016 | 38 | 74 |
| 2017 | 50 | 51 |
| 2018 | 47 | 66 |
| 2019 | 55 | 67 |
| 2020 | 53 | 80 |
| 2021 | 54 | 70 |
| 2022 | 47 | 62 |
| 2023 | 38 | 61 |
| 2024 | 54 | 43 |
| 2025 | 61 | 36 |
| 2026 | 35 | 19 |
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.
- Handbrake and impact monitoring system8 Sep 2026US 12,728,900 B2TTX Company
- Method and apparatus for a train control system8 Sep 2026US 12,728,901 B2
- Train operation control method, vehicle on-board controller, and train18 Aug 2026US 12,709,315 B2BYD Company Limited
- Vehicle system and method1 Oct 2026US 2026/0296509 A1Transportation IP Holdings, LLC
- Methods and systems for achieving vital ultra-wideband (uwb) based train control17 Sep 2026US 2026/0274312 A1Metrom Rail, LLC
- System and method for inferring vehicle route switch status17 Sep 2026US 2026/0274315 A1Transportation IP Holdings, LLC
- Crowdsensing-based method for generating temporary speed restriction of train3 Sep 2026US 2026/0257704 A1Casco Signal Ltd.
- Central buffer coupler, signal transceiver, vehicle member and computer-implemented method30 Jul 2026US 2026/0217286 A1Dellner Couplers AB
Most cited
By later US patents
- Automated wireless preventive maintenance monitoring system for magnetic levitation (MAGLEV) trains and other vehicles243US 5,445,347 AHughes Aircraft Company · 1995
- Ground-based mobile maintenance facilities for unmanned aerial vehicles189US 9,718,564 B1Amazon Technologies, Inc. · 2017
- Railroad communication system144US 4,582,280 AHarris Corporation · 1986
- Radio-based electro-pneumatic control communications system125US 5,681,015 AWestinghouse Air Brake Company · 1997
- Enhanced distributed power110US 5,950,967 AWestinghouse Air Brake Company · 1999