B61D 39/001
Tiltable roofs
Official title: {Tiltable roofs}
B61D39/001 (Tiltable roofs) appears on 25 US grants and 27 published applications in this corpus.
Search patents in B61D- Granted patents
- 25
- Published applications
- 27
- Assignees
- 21
- Inventors
- 65
- Latest grant
- 21 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 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 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 2 | 2 |
| 2012 | 1 | 2 |
| 2013 | 0 | 1 |
| 2014 | 3 | 2 |
| 2015 | 1 | 2 |
| 2016 | 0 | 2 |
| 2017 | 4 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 0 |
| 2020 | 2 | 1 |
| 2021 | 1 | 2 |
| 2022 | 0 | 1 |
| 2023 | 3 | 4 |
| 2024 | 2 | 0 |
| 2025 | 1 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Bridge crane apparatus for opening and closing railcar lids7 May 2024US 11,975,747 B2RayHawk Technologies Inc.
- Hopper railroad car having top hatch cover assembly1 Aug 2023US 11,713,061 B2Gunderson LLC
- Adjustable hatch cover locks28 Mar 2023US 11,613,914 B2Ireco, Inc.
- Railcar systems and cargo transportation methods12 Mar 2026US 2026/0070588 A1Green Swan Technologies, LLC
- 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
- Hopper railroad car having top hatch cover assembly12 Oct 2023US 2023/0322276 A1Gunderson LLC
Most cited
By later US patents
- Reversible latching hinge66US 4,613,174 ASyntechnics, Inc. · 1986
- Hatch cover hinge and lock assembly having safety interlock for hinge18US 5,311,824 ATransit America, Inc. · 1994
- Rail car cover system13US 7,967,363 B2Shorma Company · 2011
- Semi-rigid railcar cover11US 7,878,124 B2Ecofab Covers International Inc. · 2011
- System and method for powered railcar doors10US 8,701,565 B2Trinity Industries, Inc. · 2014