B61L 29/288
Wiring diagram of the signal control circuits
Official title: {Wiring diagram of the signal control circuits}
B61L29/288 (Wiring diagram of the signal control circuits) appears on 14 US grants and 15 published applications in this corpus.
Search patents in B61L- Granted patents
- 14
- Published applications
- 15
- Assignees
- 8
- Inventors
- 16
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 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 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 3 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 3 | 3 |
| 2023 | 2 | 2 |
| 2024 | 3 | 2 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
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- Warning light control system with variable flashing rate8 Oct 2024US 12,114,404 B2Railway Equipment Company, Inc.
- System and method for railroad smart flasher lamps26 Mar 2024US 11,943,852 B2BNSF Railway Company
- Double-sided terminal board for grade crossing gate controller19 Mar 2024US 11,932,297 B2C.D.L. Electric Company, Inc.
- Grade crossing gate arm position detection system10 Oct 2023US 11,780,479 B2C.D.L. Electric Company, Inc.
- System and method for railroad smart flasher lamps20 Nov 2025US 2025/0358915 A1BNSF Railway Company
- System for testing railroad crossing signals23 Jan 2025US 2025/0026389 A1BNSF Railway Company
- System and method for railroad smart flasher lamps11 Jul 2024US 2024/0237172 A1BNSF Railway Company
- Grade crossing gate arm position detection system27 Jun 2024US 2024/0208555 A1C.D.L. Electric Company, Inc.
- System and method for railroad smart flasher lamps24 Aug 2023US 2023/0269848 A1BNSF Railway Company
Most cited
By later US patents
- Solid state railroad lights/gate controller18US 4,703,303 ASafetran Systems Corporation · 1987
- Grade-crossing motorist warning system9US 3,963,202 AThe United States of America as represented by the Secretary of the Department of Transportation · 1976
- Railroad crossing gate monitoring and alarm system3US 10,589,766 B2Siemens Mobility GmbH · 2020
- User interface for grade crossing gate controller2US 11,273,854 B2C.D.L. Electric Company, Inc. · 2022
- System and method for railroad smart flasher lamps2US 11,943,852 B2BNSF Railway Company · 2024