B61C 15/12
By reducing the driving power
Official title: by reducing the driving power
B61C15/12 (By reducing the driving power) appears on 20 US grants and 15 published applications in this corpus.
Search patents in B61C- Granted patents
- 20
- Published applications
- 15
- Assignees
- 12
- Inventors
- 39
- Latest grant
- 10 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 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 | 1 | 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 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 5 |
| 2006 | 4 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 1 | 0 |
| 2015 | 2 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Electric vehicle control device, train control system, and ground device10 Dec 2024US 12,162,520 B2Mitsubishi Electric Corporation
- Traction system for railcar movers26 Oct 2021US 11,155,135 B2Nordco Inc.
- System and method for controlling a vehicle27 Aug 2019US 10,392,031 B2Ge Global Sourcing LLC
- System and method for controlling an engine air-fuel ratio9 Jan 2018US 9,863,342 B2General Electric Company
- Position control system12 Apr 2016US 9,308,926 B2Universal City Studios LLC
- Electric vehicle control device, train control system, and ground device22 Jun 2023US 2023/0192155 A1Mitsubishi Electric Corporation
- Traction system for railcar movers12 Dec 2019US 2019/0375257 A1Nordco Inc.
- System and method for controlling a vehicle3 May 2018US 2018/0118228 A1General Electric Company
- System and method for controlling an engine air-fuel ratio30 Mar 2017US 2017/0089278 A1General Electric Company
- Propulsion control system and method for railway maintenance vehicles26 Feb 2015US 2015/0057850 A1Nordco Inc.
Most cited
By later US patents
- Adaptive acceleration responsive system50US 4,075,538 AGeneral Electric Company · 1978
- Method for inhibiting wheel slip in an electric alternating current induction motor powered vehicle45US 5,480,220 AGeneral Electric Company · 1996
- Method for monitoring and controlling traction motors in locomotives44US 6,984,946 B2Railpower Technologies Corp. · 2006
- Sequenced pulse width modulation method and apparatus for controlling and powering a plurality of direct current motors26US 6,812,656 B2Railpower Technologies Corp. · 2004
- Traction control system and a method for remedying wheel-slippage23US 6,012,011 A2000