B61L 5/00
Local operating mechanisms for points or track-mounted scotch-blocks
Official title: Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals (B61L11/00 takes precedence)
B61L5/00 (Local operating mechanisms for points or track-mounted scotch-blocks) appears on 392 US grants and 331 published applications in this corpus.
Search patents in B61L- Granted patents
- 392
- Published applications
- 331
- Assignees
- 208
- Inventors
- 742
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 10 | 0 |
| 1997 | 12 | 0 |
| 1998 | 9 | 0 |
| 1999 | 1 | 0 |
| 2000 | 11 | 0 |
| 2001 | 12 | 1 |
| 2002 | 14 | 10 |
| 2003 | 17 | 10 |
| 2004 | 8 | 12 |
| 2005 | 4 | 16 |
| 2006 | 14 | 13 |
| 2007 | 9 | 9 |
| 2008 | 7 | 13 |
| 2009 | 6 | 10 |
| 2010 | 12 | 6 |
| 2011 | 7 | 6 |
| 2012 | 6 | 12 |
| 2013 | 5 | 11 |
| 2014 | 11 | 17 |
| 2015 | 14 | 14 |
| 2016 | 12 | 14 |
| 2017 | 15 | 13 |
| 2018 | 9 | 26 |
| 2019 | 16 | 29 |
| 2020 | 18 | 18 |
| 2021 | 19 | 13 |
| 2022 | 19 | 13 |
| 2023 | 11 | 14 |
| 2024 | 15 | 20 |
| 2025 | 14 | 7 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B61L 5/12Visible signals148
- B61L 5/10Locking mechanisms for points131
- B61L 5/02Mechanical devices for operating points or scotch-blocks69
- B61L 5/06Electric devices for operating points or scotch-blocks64
- B61L 5/04Fluid-pressure devices for operating points or scotch-blocks34
- B61L 5/20Audible signals6
- B61L 5/08Underground actuating arrangements1
Recent patents
- Electromagnet switch for shuttles on a track6 Oct 2026US 12,752,824 B1Amazon Technologies, Inc.
- Monitoring device for a buffer stop26 May 2026US 12,637,122 B2Amx Automation Technologies GmbH
- Switch control method for rail transit signal system, and apparatus for method10 Mar 2026US 12,570,337 B2Casco Signal Ltd.
- Switch control method and apparatus, and storage medium3 Mar 2026US 12,565,249 B2BYD Company Limited
- Reverse angled point slider3 Feb 2026US 12,539,901 B2
- Chair plate switch rail actuator (point machine)10 Sep 2026US 2026/0264726 A1Siemens Mobility Pty Ltd.
- Railroad switch actuation system, railroad switch and method for recording data for determining a state of wear of such a railroad switch actuation system and/or railroad switch13 Aug 2026US 2026/0233769 A1Axo Track GmbH
- Rotary console for a rail-guided transport system25 Jun 2026US 2026/0175882 A1
- Railway control and field device switching system25 Jun 2026US 2026/0181046 A1Hitachi Rail Sts USA, Inc.
- System and method for railroad smart flasher lamps20 Nov 2025US 2025/0358915 A1BNSF Railway Company
Most cited
By later US patents
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- Signal light unit having heat dissipating function456US 4,729,076 A1988
- Thermally protected LED array337US 5,785,418 A1998
- Circuit for interfacing between a conventional traffic signal conflict monitor and light emitting diodes replacing a conventional incandescent bulb in the signal204US 6,150,771 APrecision Solar Controls Inc. · 2000
- Light degradation sensing LED signal with light pipe collector113US 6,717,526 B2GELcore, LLC · 2004