B61D 17/16
Hatches in roofs
B61D17/16 (Hatches in roofs) appears on 61 US grants and 38 published applications in this corpus.
Search patents in B61D- Granted patents
- 61
- Published applications
- 38
- Assignees
- 41
- Inventors
- 107
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 3 |
| 2009 | 0 | 1 |
| 2010 | 2 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 2 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 3 | 2 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 4 |
| 2020 | 2 | 1 |
| 2021 | 2 | 4 |
| 2022 | 0 | 3 |
| 2023 | 3 | 5 |
| 2024 | 4 | 1 |
| 2025 | 2 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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
- Manway relief for a tank car10 Sep 2024US 12,084,095 B2Trinity Tank Car, Inc.
- Railcar hatch cover10 Sep 2024US 12,084,096 B2Freightlucid, LLC
- Passenger vehicle ventilation hatch and emergency exit with several use functions3 Sep 2026US 2026/0257701 A1Transtec DiseñO E Ingenieria SAS
- Low-Profile Hatch Cover for Railroad Tank Cars14 May 2026US 2026/0131832 A1A. Stucki Company
- Hopper railroad car having multi-level running boards29 Jan 2026US 2026/0028053 A1Gunderson LLC
- Imaging system for bulk transport vehicles14 Aug 2025US 2025/0256662 A1Dimension Product Solutions LP
- Manway Relief for a Tank Car12 Dec 2024US 2024/0409132 A1Trinity Tank Car, Inc.
Most cited
By later US patents
- Hatch cover sealing device30US 6,050,199 AZeftek, Inc. · 2000
- Tank car manway cover assembly29US 6,076,471 A2000
- Vented hatch cover27US 5,960,980 AZeftek, Inc. · 1999
- Hatch cover gasket26US 6,494,338 B1TRN Business Trust · 2002
- Hatch cover having a removable gasket23US 5,622,117 ASalco Products, Inc. · 1997