B61K 7/12
Electrically controlled
Official title: electrically controlled {(B61K7/025 takes precedence)}
B61K7/12 (Electrically controlled) appears on 7 US grants and 8 published applications in this corpus.
Search patents in B61K- Granted patents
- 7
- Published applications
- 8
- Assignees
- 6
- Inventors
- 20
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 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 | 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 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 5 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Railway management system with brake calculation and related method29 Sep 2026US 12,746,959 B2Wsp Global, Inc.
- Brake system for track and mover system11 Jun 2024US 12,005,939 B2Rockwell Automation Technologies, Inc.
- Universal retarder system for railway cars7 Jun 2022US 11,352,032 B2Precision Rail and Mfg., Inc.
- Method for operating a switching hump system and control means for the same29 Sep 2015US 9,145,151 B2Siemens Aktiengesellschaft
- Method for operating a switching hump yard, and control device for a switching hump yard8 Sep 2015US 9,126,606 B2Siemens Aktiengesellschaft
- Systems and methods for retarding the speed of a railcar19 Oct 2023US 2023/0331265 A1Precision Rail and Mfg., Inc.
- Brake system for track and mover system16 Mar 2023US 2023/0079695 A1Rockwell Automation Technologies, Inc.
- Railway management system with brake calculation and related method26 Jan 2023US 2023/0024017 A1Wsp Global, Inc.
- Railway management system with data repository19 Jan 2023US 2023/0014504 A1Wsp Global, Inc.
- Railway management system with cable management and related method5 Jan 2023US 2023/0004693 A1Wsp Global, Inc.
Most cited
By later US patents
- Speed control apparatus and method for railroad car retarders8US 4,235,403 AAmerican Standard Inc. · 1980
- Method for operating a switching hump system and control means for the same4US 9,145,151 B2Siemens Aktiengesellschaft · 2015
- Slippery wheel detector3US 3,993,270 ASouthern Pacific Transportation Company · 1976
- Brake system for track and mover system1US 12,005,939 B2Rockwell Automation Technologies, Inc. · 2024
- Method for operating a switching hump yard, and control device for a switching hump yard1US 9,126,606 B2Siemens Aktiengesellschaft · 2015