B61L 19/14
With electrical locks
Official title: with electrical locks
B61L19/14 (With electrical locks) appears on 5 US grants and 4 published applications in this corpus.
Search patents in B61L- Granted patents
- 5
- Published applications
- 4
- Assignees
- 5
- Inventors
- 19
- Latest grant
- 10 Mar 2026
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 | 0 | 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 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Switch control method for rail transit signal system, and apparatus for method10 Mar 2026US 12,570,337 B2Casco Signal Ltd.
- Interlocking protection device for turnout switching and turnout system19 Apr 2022US 11,305,794 B2BYD Company Limited
- Peripheral control post of railway field devices and installation method of said peripheral post24 Apr 2018US 9,950,717 B2ECM S.p.A.
- Method for isolation of vital functions in a centralized train control system11 Dec 2012US 8,328,143 B2Lockheed Martin Corporation
- Control system for railroads24 Aug 1976US 3,976,272 AGeneral Signal Corporation
- Switch control method for rail transit signal system, and apparatus for method28 Dec 2023US 2023/0415797 A1Casco Signal Ltd.
- Interlocking protection device for turnout switching and turnout system31 Oct 2019US 2019/0329805 A1BYD Company Limited
- Peripheral control post of railway field devices and installation method of said peripheral post15 Sep 2016US 2016/0264161 A1ECM S.p.A.
- Method for Isolation of Vital Functions in a Centralized Train Control System23 Jul 2009US 2009/0184210 A1Lockheed Martin Corporation
Most cited
By later US patents