B61L 11/02
Operation of points from the vehicle or by the passage of the
Official title: using mechanical interaction between vehicle and track
B61L11/02 (Operation of points from the vehicle or by the passage of the) appears on 11 US grants and 5 published applications in this corpus.
Search patents in B61L- Granted patents
- 11
- Published applications
- 5
- Assignees
- 8
- Inventors
- 17
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 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 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 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 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Train-ground interlocking method and system for rail transit train operation control19 May 2026US 12,630,203 B2Casco Signal Ltd.
- Rail system for singling out and rerouting rail vehicles6 Apr 2021US 10,967,889 B2SchäFer Zechlin Gbr
- Railway vehicle derailment detection method and device19 May 2020US 10,654,496 B2Nippon Steel Corporation
- Railroad spring frog assembly1 May 2001US 6,224,023 B1ABC Rail Products Corporation
- Railroad frog assembly with multi-position holdback26 Dec 2000US 6,164,602 AABC Rail Products Corporation
- Rail based mobility systems and methods of installation and use1 May 2025US 2025/0137205 A1
- Train-ground interlocking method and system for rail transit train operation control3 Aug 2023US 2023/0242167 A1Casco Signal Ltd.
- System and method for switching railcars using a static rail-track configuration29 Oct 2020US 2020/0339169 A1
- Railway vehicle derailment detection method and device14 Feb 2019US 2019/0047597 A1Nippon Steel & Sumitomo Metal Corporation
- Rail system for singling out and rerouting rail vehicles23 Aug 2018US 2018/0237038 A1SchäFer Zechlin Gbr
Most cited
By later US patents
- Spring rail frog28US 4,624,428 AAbex Corporation · 1986
- Railroad spring frog12US 5,544,848 AABC Rail Products Corporation · 1996
- Thin flange and loose wheel detection system9US 4,407,072 ASouthern Railway Company · 1983
- Railroad frog assembly with multi-position holdback8US 6,164,602 AABC Rail Products Corporation · 2000
- Spring rail frog having switchable magnet for holding wing rail open7US 5,806,810 AABC Rail Products Corporation · 1998