B61H 7/04
Attached to railway vehicles
Official title: attached to railway vehicles
B61H7/04 (Attached to railway vehicles) appears on 96 US grants and 86 published applications in this corpus.
Search patents in B61H- Granted patents
- 96
- Published applications
- 86
- Assignees
- 62
- Inventors
- 221
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 0 |
| 2004 | 1 | 3 |
| 2005 | 1 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 4 |
| 2011 | 2 | 1 |
| 2012 | 1 | 2 |
| 2013 | 2 | 2 |
| 2014 | 2 | 7 |
| 2015 | 2 | 3 |
| 2016 | 3 | 9 |
| 2017 | 4 | 3 |
| 2018 | 5 | 2 |
| 2019 | 3 | 9 |
| 2020 | 3 | 4 |
| 2021 | 5 | 8 |
| 2022 | 6 | 6 |
| 2023 | 5 | 4 |
| 2024 | 4 | 3 |
| 2025 | 6 | 8 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Magnetic track brake having a high-position detecting means installed in or on the actuation cylinder6 Oct 2026US 12,752,822 B2Knorr-Bremse GmbH
- Trolley mid-brake10 Mar 2026US 12,570,504 B2Unistrut International Corp.
- System and method for guidance control on a wheeled bogie6 Jan 2026US 12,515,717 B2Dp World Logistics US Holdings, Inc.
- Braking system16 Sep 2025US 12,415,484 B2Duplicent, LLC
- Integrated electromagnet and maglev train15 Jul 2025US 12,358,378 B2Crrc Qingdao Sifang Co., Ltd.
- Magnetic track brake system8 Jan 2026US 2026/0009412 A1Transportation IP Holdings, LLC
- Braking system25 Dec 2025US 2025/0388194 A1Duplicent, LLC
- Brake magnet of a magnetic rail brake device of a rail vehicle25 Dec 2025US 2025/0388245 A1
- Method for controlling an electrodynamic brake apparatus of a rail vehicle11 Sep 2025US 2025/0282232 A1Siemens Mobility GmbH
- Road vehicle provided with an energy dissipator device31 Jul 2025US 2025/0242698 A1Ferrari S.P. A.
Most cited
By later US patents
- Braking system for an amusement device68US 6,062,350 A2000
- Electromagnetic or permanent-magnetic rail brake48US 5,862,891 AKnorr-Bremse Systeme Fur Scheinenfahrzeuge GmbH · 1999
- Magnetic brake linear eddy current brake42US 6,041,897 AKnorr-Bremse System Fur Schienenfahrzeuge GmbH · 2000
- Switchable permanent magnet brake33US 4,482,034 A1984
- Magnetic levitation train provided with an eddy-current brake22US 8,250,990 B2ThyssenKrupp Transrapid GmbH · 2012