B61D 5/00
Tank wagons for carrying fluent materials
B61D5/00 (Tank wagons for carrying fluent materials) appears on 207 US grants and 160 published applications in this corpus.
Search patents in B61D- Granted patents
- 207
- Published applications
- 160
- Assignees
- 102
- Inventors
- 364
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 5 | 0 |
| 1988 | 0 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 7 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 1 |
| 2003 | 5 | 4 |
| 2004 | 2 | 1 |
| 2005 | 1 | 2 |
| 2006 | 3 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 4 |
| 2009 | 0 | 1 |
| 2010 | 3 | 8 |
| 2011 | 5 | 5 |
| 2012 | 6 | 3 |
| 2013 | 3 | 8 |
| 2014 | 7 | 9 |
| 2015 | 5 | 14 |
| 2016 | 9 | 14 |
| 2017 | 14 | 11 |
| 2018 | 9 | 11 |
| 2019 | 3 | 9 |
| 2020 | 8 | 6 |
| 2021 | 2 | 10 |
| 2022 | 6 | 9 |
| 2023 | 6 | 6 |
| 2024 | 10 | 5 |
| 2025 | 8 | 8 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B61D 5/08Covers or access openings68
- B61D 5/06Mounting of tanks33
- B61D 5/04Tank wagons for carrying fluent materials: with means for cooling, heating, or22
- B61D 5/002Tank wagons for carrying fluent materials: for particulate or powder materials17
- B61D 5/02Tank wagons for carrying fluent materials: having more than one tank17
- B61D 5/008Trackside means for assisting charge or discharge13
Recent patents
- Railway tank car having a discharge valve assembly and a dis-engageable valve handle assembly coupled to the discharge valve assembly15 Sep 2026US 12,736,149 B2Gunderson LLC
- Tank car bottom outlet valve operating assembly26 May 2026US 12,638,100 B2Trinity Rail Group, LLC
- Storage assembly for railcar28 Apr 2026US 12,612,084 B2Trinity Rail Group, LLC
- Socket systems and methods31 Mar 2026US 12,589,470 B2IMPERIAL-Newton Corp
- Vacuum relief valve for railroad tank car16 Dec 2025US 12,498,056 B2Valve & Machining LLC
- Railroad tank car fittings10 Sep 2026US 2026/0264725 A1National Steel Car Limited
- Tank Car Underframe2 Jul 2026US 2026/0184352 A1Trinity Tank Car, Inc.
- Protective Housing Attachment for Railcar2 Jul 2026US 2026/0184353 A1Trinity Tank Car, Inc.
- Thermal Protection for Tank Car2 Jul 2026US 2026/0184354 A1Trinity Tank Car, Inc.
- Vacuum Relief Valve for Railroad Tank Car25 Jun 2026US 2026/0177165 A1McKenzie Valve & Machining LLC
Most cited
By later US patents