B61G 11/04
With helical springs
Official title: with helical springs
B61G11/04 (With helical springs) appears on 8 US grants and 6 published applications in this corpus.
Search patents in B61G- Granted patents
- 8
- Published applications
- 6
- Assignees
- 9
- Inventors
- 19
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 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 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 2 |
| 2023 | 0 | 0 |
| 2024 | 2 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Elastomer cushion unit for railcar17 Feb 2026US 12,552,422 B2Strato Technology Solutions, LLC
- Piston rod end for a linear actuator, piston assembly and sealing method for a piston rod end8 Apr 2025US 12,269,517 B2Dellner Couplers AB
- Damping device, stacker crane, transport system, and damping device jig17 Sep 2024US 12,091,063 B2Murata Machinery, Ltd.
- Coupling support for a central buffer coupling of a rail vehicle4 Jun 2024US 11,999,389 B2Siemens Mobility GmbH
- Railcar with buffer11 Sep 2018US 10,071,754 B2Kawasaki Jukogyo Kabushiki Kaisha
- Coupler for a railway vehicle with a biasing device, and method for overhauling a coupler22 May 2025US 2025/0162623 A1Dellner Couplers AB
- Elastomer cushion unit for railcar21 Mar 2024US 2024/0092404 A1Strato, Inc.
- Damping device, stacker crane, transport system, and damping device jig9 Jun 2022US 2022/0177014 A1Murata Machinery, Ltd.
- Piston rod end for a linear actuator, piston assembly and sealing method for a piston rod end3 Mar 2022US 2022/0063684 A1Dellner Couplers AB
- Coupling support for a central buffer coupling of a rail vehicle21 Oct 2021US 2021/0323587 A1Siemens Mobility GmbH
Most cited
By later US patents