B61D 7/06
Hopper cars: with openings capable of discharging both between and outside the
Official title: with openings capable of discharging both between and outside the wheels
B61D7/06 (Hopper cars: with openings capable of discharging both between and outside the) appears on 5 US grants and 4 published applications in this corpus.
Search patents in B61D- Granted patents
- 5
- Published applications
- 4
- Assignees
- 4
- Inventors
- 9
- Latest grant
- 22 Aug 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 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 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Hopper car double doors22 Aug 2023US 11,731,668 B2Trinity Rail Group, LLC
- Longitudinal sliding gate for hopper car10 Aug 2021US 11,084,508 B2Trinity Industries, Inc.
- Hopper car double doors29 Dec 2020US 10,875,548 B2Trinity Rail Group, LLC
- Unloading system and method for continuously moving rapid discharge railcars22 May 2012US 8,182,190 B2Ashross, LLC
- Loading wagon for transport, storage and discharge of bulk material28 Mar 1995US 5,400,718 AFranz Plasser Bahnbaumaschinin-Industriegesellschaft
- Hopper car double doors15 Apr 2021US 2021/0107533 A1Trinity Rail Group, LLC
- Longitudinal Sliding Gate for Hopper Car4 Jul 2019US 2019/0202481 A1Trinity Industries, Inc.
- Hopper car double doors6 Dec 2018US 2018/0345997 A1Trinity Rail Group, LLC
- Unloading system and method for continuously moving rapid discharge railcars1 Oct 2009US 2009/0245987 A1Ashross, LLC
Most cited
By later US patents
- Loading wagon for transport, storage and discharge of bulk material16US 5,400,718 AFranz Plasser Bahnbaumaschinin-Industriegesellschaft · 1995
- Unloading system and method for continuously moving rapid discharge railcars4US 8,182,190 B2Ashross, LLC · 2012
- Hopper car double doors1US 10,875,548 B2Trinity Rail Group, LLC · 2020
- Longitudinal sliding gate for hopper car1US 11,084,508 B2Trinity Industries, Inc. · 2021