B61F 1/04
Underframes: of triangulated type
Official title: of triangulated type
B61F1/04 (Underframes: of triangulated type) appears on 10 US grants and 1 published applications in this corpus.
Search patents in B61F- Granted patents
- 10
- Published applications
- 1
- Assignees
- 4
- Inventors
- 17
- Latest grant
- 18 Jan 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 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 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Chassis component of railway vehicle, and railway vehicle18 Jan 2022US 11,225,270 B2Crrc Qingdao Sifang Co., Ltd.
- High capacity container rail car for varying arrangements intermodal containers24 Mar 1998US 5,730,063 ANational Steel Car Limited
- Railroad freight car with well for stacked cargo containers15 Dec 1992US 5,170,718 AGunderson LLC
- Railroad freight car with well for stacked cargo containers8 Oct 1991US 5,054,403 AGunderson LLC
- Railroad freight car with well for stacked cargo containers16 Jan 1990US 4,893,567 AGunderson LLC
Most cited
By later US patents
- Stacked container well hole gondola car53US 4,091,742 A1978
- Lightweight container car36US 4,703,699 AGunderson LLC · 1987
- Aerodynamic drag reduction for railcars35US 4,756,256 AGunderson LLC · 1988
- Railroad freight car with well for stacked cargo containers33US 5,054,403 AGunderson LLC · 1991
- Light weight container car32US 4,599,949 AGunderson LLC · 1986