B61L 3/14
To cut-off the power supply to traction motors of electrically-propelled vehicles
Official title: to cut-off the power supply to traction motors of electrically-propelled vehicles
B61L3/14 (To cut-off the power supply to traction motors of electrically-propelled vehicles) appears on 11 US grants and 3 published applications in this corpus.
Search patents in B61L- Granted patents
- 11
- Published applications
- 3
- Assignees
- 11
- Inventors
- 24
- Latest grant
- 11 Sep 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 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 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Protection system of a railway vehicle traction system, associated transmission line and associated railway vehicle11 Sep 2018US 10,071,750 B2Alstom Transport Technologies
- System and method for automated locomotive startup and shutdown recommendations16 Dec 2014US 8,914,168 B2Union Pacific Railroad Company
- Automatic and guided system for transporting people and method for controlling transport modules running in such a system21 Aug 2007US 7,258,309 B2Alstom
- Transport system with electric rail cars19 Sep 1995US 5,450,796 ADaifuku Co., Ltd.
- Current contact line arrangement12 Nov 1991US 5,064,972 AMannesmann Aktiengesellschaft
- Protection system of a railway vehicle traction system, associated transmission line and associated railway vehicle11 Aug 2016US 2016/0229421 A1Alstom Transport Technologies
- System and Method for Automated Locomotive Startup and Shutdown Recommendations10 Oct 2013US 2013/0268147 A1Union Pacific Railroad Company
- Automatic and guided system for transporting people and method for controlling transport modules running in such a system13 Jan 2005US 2005/0005813 A1Alstom
Most cited
By later US patents
- Transport system with electric rail cars17US 5,450,796 ADaifuku Co., Ltd. · 1995
- Proximity control system8US 4,947,759 ATele Engineering, Inc. · 1990
- Electric power supplying system for a continuous transit system by magnet (CTM)5US 4,665,831 AFurukawa Electric Co., Ltd. · 1987
- Aerial transport system4US 4,345,522 ANissan Motor Co., Ltd. · 1982
- Device for precluding a collision between a mobile object and a fixed or mobile obstacle3US 4,039,916 A1977