B61D 39/00
Wagon or like covers
Official title: Wagon or like covers; Tarpaulins; Movable or foldable roofs
B61D39/00 (Wagon or like covers) appears on 113 US grants and 85 published applications in this corpus.
Search patents in B61D- Granted patents
- 113
- Published applications
- 85
- Assignees
- 76
- Inventors
- 209
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 5 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 2 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 3 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 3 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 5 |
| 2011 | 4 | 6 |
| 2012 | 2 | 4 |
| 2013 | 5 | 2 |
| 2014 | 4 | 4 |
| 2015 | 2 | 5 |
| 2016 | 3 | 6 |
| 2017 | 6 | 0 |
| 2018 | 1 | 6 |
| 2019 | 3 | 9 |
| 2020 | 9 | 6 |
| 2021 | 3 | 6 |
| 2022 | 4 | 3 |
| 2023 | 3 | 6 |
| 2024 | 6 | 0 |
| 2025 | 2 | 5 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Railcar tab gasket and process of manufacture29 Sep 2026US 12,746,953 B2Gasket Resources Incorporated
- Hopper railroad car having top hatch cover assembly29 Apr 2025US 12,286,141 B2Gunderson LLC
- Cover assemblies for railroad cars21 Jan 2025US 12,202,529 B2Gunderson LLC
- Railroad car and end door assembly therefor12 Nov 2024US 12,139,178 B2National Steel Car Limited
- Railcar systems and cargo transportation methods16 Jul 2024US 12,037,029 B2Tsg Canada Holdings Inc.
- Railcar systems and cargo transportation methods12 Mar 2026US 2026/0070588 A1Green Swan Technologies, LLC
- Improved Automatic Hatch System for Trough Loaded Hopper Railcars9 Oct 2025US 2025/0313240 A1
- Dump car having arced top and side gates29 May 2025US 2025/0171055 A1Nordic Minesteel Technologies Inc.
- Railcar systems and cargo transportation methods29 May 2025US 2025/0171056 A1Tsg Canada Holdings Inc.
- Structure for a substructure22 May 2025US 2025/0162490 A1
Most cited
By later US patents
- Reversible latching hinge66US 4,613,174 ASyntechnics, Inc. · 1986
- Lightweight railway car hatch cover37US 4,239,008 ABaltek Corporation · 1980
- Lid assembly for roll-off sludge containers34US 5,167,341 AMcClain Industries of Oklahoma, a division of McClain Industries, Inc. · 1992
- Railroad cars for transporting cylindrical objects transversely with multi-piece movable cover for exposing entire cargo area34US 5,170,717 AThrall Car Manufacturing Company · 1992
- Apparatus for covering an open-topped vehicle33US 4,823,707 A1989