B61C 15/04
Maintaining or augmenting the starting or braking power by auxiliary devices and
Official title: by controlling wheel pressure, e.g. by movable weights or heavy parts or by magnetic devices (magnetic brakes B61H)
B61C15/04 (Maintaining or augmenting the starting or braking power by auxiliary devices and) appears on 36 US grants and 46 published applications in this corpus.
Search patents in B61C- Granted patents
- 36
- Published applications
- 46
- Assignees
- 18
- Inventors
- 62
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 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 | 7 |
| 2010 | 0 | 3 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 4 | 2 |
| 2014 | 1 | 3 |
| 2015 | 1 | 0 |
| 2016 | 2 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 4 |
| 2019 | 3 | 3 |
| 2020 | 0 | 5 |
| 2021 | 3 | 2 |
| 2022 | 7 | 6 |
| 2023 | 1 | 1 |
| 2024 | 1 | 3 |
| 2025 | 3 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Magnetic traction assist for railcar mover21 Jul 2026US 12,686,418 B2Trackmobile LLC
- System and method for guidance control on a wheeled bogie6 Jan 2026US 12,515,717 B2Dp World Logistics US Holdings, Inc.
- Devices and tooling system for maintenance of dynamic weight management systems on railroad vehicles2 Dec 2025US 12,485,508 B2BNSF Railway Company
- System and method for traversing a non-moving rail switch using electromagnetic engines6 May 2025US 12,291,249 B2Hyperloop Technologies, Inc.
- System and method for rail scanning using electromagnetic engines11 Mar 2025US 12,246,762 B2Hyperloop Technologies, Inc.
- Devices and tooling system for maintenance of dynamic weight management systems on railroad vehicles26 Mar 2026US 2026/0084252 A1BNSF Railway Company
- Wheel railway system with auxiliary propulsion system28 Aug 2025US 2025/0269728 A1Nevomo Poland Sp. Z O.O.
- Magnetic Traction Assist for Railcar Mover17 Oct 2024US 2024/0343272 A1Trackmobile LLC
- Devices and tooling system for maintenance of dynamyic weight management systems on railroad vehicles11 Apr 2024US 2024/0116147 A1BNSF Railway Company
- Dynamic simulation test platform and method for ultra-high-speed evacuated tube magnetic levitation (maglev) transportation1 Feb 2024US 2024/0035930 A1Southwest Jiaotong University
Most cited
By later US patents
- Rail vehicles with propulsion energy recovery system101US 4,108,077 A1978
- Energy management method for a locomotive including single-sided linear induction motors17US 4,719,861 AGeneral Motors Corporation · 1988
- Hanging product divider and pusher systems and methods for dividing, pushing and/or dispensing one or more retail products14US 9,642,475 B2Marketing Impact Limited · 2017
- System and method for dynamically affecting a force applied through a rail vehicle axle9US 8,371,233 B2General Electric Company · 2013
- Adjustable depth merchandising crossbar systems and methods for dividing, pushing and/or dispensing one or more retail products9US 9,408,478 B2Marketing Impact Limited · 2016