B61D 3/184
The heavy vehicles being of the trailer or semi-trailer type
Official title: {the heavy vehicles being of the trailer or semi-trailer type}
B61D3/184 (The heavy vehicles being of the trailer or semi-trailer type) appears on 169 US grants and 56 published applications in this corpus.
Search patents in B61D- Granted patents
- 169
- Published applications
- 56
- Assignees
- 65
- Inventors
- 194
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 8 | 0 |
| 1987 | 11 | 0 |
| 1988 | 11 | 0 |
| 1989 | 8 | 0 |
| 1990 | 11 | 0 |
| 1991 | 12 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 4 | 4 |
| 2003 | 5 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 3 |
| 2011 | 0 | 2 |
| 2012 | 2 | 5 |
| 2013 | 2 | 3 |
| 2014 | 4 | 4 |
| 2015 | 2 | 0 |
| 2016 | 3 | 0 |
| 2017 | 5 | 2 |
| 2018 | 3 | 8 |
| 2019 | 4 | 2 |
| 2020 | 3 | 4 |
| 2021 | 1 | 2 |
| 2022 | 2 | 5 |
| 2023 | 2 | 1 |
| 2024 | 4 | 2 |
| 2025 | 1 | 4 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Goods wagon for transporting goods and basin for such a goods wagon17 Mar 2026US 12,576,892 B2
- Container locking device and piggyback transport vehicle18 Mar 2025US 12,252,061 B2China Shenhua Energy Company Limited
- Universal hitch intermodal well car system31 Dec 2024US 12,179,812 B2Trinity Rail Group, LLC
- Railway wagon for transportation of semi-trailers and the like24 Dec 2024US 12,172,682 B2Helrom GmbH
- Railway wagon for transportation of semi-trailers and the like12 Nov 2024US 12,139,179 B2Helrom GmbH
- Universal Hitch Intermodal Well Car System24 Apr 2025US 2025/0128743 A1Trinity Rail Group, LLC
- Multiple-axle rail car with span bolsters13 Mar 2025US 2025/0083712 A1Kasgro Rail Corp.
- Apparatus for powering a refrigeration unit of a cargo container6 Feb 2025US 2025/0042449 A1Carrier Corporation
- Railway wagon for transportation of semi-trailers and the like23 Jan 2025US 2025/0026385 A1Helrom GmbH
- Railway wagon with improved launch beam positioning16 May 2024US 2024/0157982 A1Helrom GmbH
Most cited
By later US patents
- Low level freight car72US 4,686,907 AHawker Siddeley Canada Ltd. · 1987
- Low level freight car for carrying trailers67US 4,456,413 AThe Budd Company · 1984
- Container carrying convertible rail-highway vehicle67US 4,817,537 A1989
- Articulated lightweight piggyback railcar65US 4,751,882 ACanadian National Railway Company · 1988
- Convertible highway and rail freight vehicle55US 6,439,131 B12002