B61D 39/002
Sliding or folding roofs
Official title: {Sliding or folding roofs}
B61D39/002 (Sliding or folding roofs) appears on 30 US grants and 23 published applications in this corpus.
Search patents in B61D- Granted patents
- 30
- Published applications
- 23
- Assignees
- 24
- Inventors
- 61
- Latest grant
- 16 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 2 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 3 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 2 |
| 2020 | 3 | 2 |
| 2021 | 1 | 3 |
| 2022 | 1 | 0 |
| 2023 | 0 | 2 |
| 2024 | 4 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Railcar systems and cargo transportation methods16 Jul 2024US 12,037,029 B2Tsg Canada Holdings Inc.
- Bridge crane apparatus for opening and closing railcar lids7 May 2024US 11,975,747 B2RayHawk Technologies Inc.
- Openable structure for a substructure26 Mar 2024US 11,938,798 B2European Trailer Systems GmbH
- Wheel in car plate assemblies and uses thereof27 Feb 2024US 11,912,115 B2Petelka Investments Inc.
- Opening and closing method and opening and closing mechanism of convertible movable top cover of railway freight wagon8 Feb 2022US 11,242,074 B2Zhuzhou Huasheng Industrial Co., Ltd.
- Improved Automatic Hatch System for Trough Loaded Hopper Railcars9 Oct 2025US 2025/0313240 A1
- Railcar systems and cargo transportation methods29 May 2025US 2025/0171056 A1Tsg Canada Holdings Inc.
- Bridge crane apparatus for opening and closing railcar lids28 Sep 2023US 2023/0303134 A1RayHawk Technologies Inc.
- Railcar systems and cargo transportation methods20 Jul 2023US 2023/0227079 A1Tsg Canada Holdings Inc.
- Wheel in car plate assemblies and uses thereof11 Nov 2021US 2021/0347393 A1Petelka Investments Inc.
Most cited
By later US patents
- 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
- Truck trailer body with sliding nestable canopies20US 6,017,082 A2000
- Slidable cover assembly for merchandise carrying vehicle platforms19US 6,976,433 B12005
- Sliding-bow folding up18US 6,905,161 B2Edscha LKW-Schiebeverdecke GmbH · 2005