B61G 9/18
With separate mechanical friction shock-absorbers
Official title: with separate mechanical friction shock-absorbers
B61G9/18 (With separate mechanical friction shock-absorbers) appears on 10 US grants and 4 published applications in this corpus.
Search patents in B61G- Granted patents
- 10
- Published applications
- 4
- Assignees
- 8
- Inventors
- 15
- Latest grant
- 22 Oct 2024
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 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 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 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Crash energy management systems for car coupling systems of rail cars22 Oct 2024US 12,122,433 B2Amsted Rail Company, Inc.
- End-of car energy management system for railcars2 Oct 2018US 10,086,852 B2Canadian National Railway Company
- Coupler assembly for coupling railway wagons22 Mar 2016US 9,290,189 B2Axtone Spolka Akcyjna
- Taper under tapered plate to increase side force on the movable plate8 Mar 2011US 7,900,785 B2Wabtec Holding Corp.
- Segmented sliding sill wear plate3 Apr 1990US 4,913,062 AZeftek, Inc.
- Crash energy management systems for car coupling systems of rail cars4 Aug 2022US 2022/0242461 A1Amsted Rail Company, Inc.
- End-of-car energy management system for railcars10 Sep 2015US 2015/0251671 A1Canadian National Railway Company
- Coupler assembly for coupling railway wagons17 Oct 2013US 2013/0270210 A1Axtone Spolka Z Ograniczona Odpowiedzialnoscia
- Taper under tapered plate to increase side force on the movable plate30 Oct 2008US 2008/0264890 A1Wabtec Holding Corp.
Most cited
By later US patents
- Railroad car draft gear assembly with friction bore wear liners20US 4,591,059 AMiner Enterprises, Inc. · 1986
- Segmented sliding sill wear plate19US 4,784,068 AZeftek, Inc. · 1988
- Segmented sliding sill wear plate19US 4,913,062 AZeftek, Inc. · 1990
- Draft gear assembly17US 4,645,187 AAmerican Standard Inc. · 1987
- End-of car energy management system for railcars8US 10,086,852 B2Canadian National Railway Company · 2018