B67D 7/3209
Relating to spillage or leakage
Official title: {relating to spillage or leakage, e.g. spill containments, leak detection (leak detectors for underground fuel dispensing systems G01M3/2892)}
B67D7/3209 (Relating to spillage or leakage) appears on 389 US grants and 264 published applications in this corpus.
Search patents in B67D- Granted patents
- 389
- Published applications
- 264
- Assignees
- 169
- Inventors
- 494
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 8 | 0 |
| 1994 | 17 | 0 |
| 1995 | 4 | 0 |
| 1996 | 8 | 0 |
| 1997 | 9 | 0 |
| 1998 | 14 | 0 |
| 1999 | 21 | 0 |
| 2000 | 8 | 0 |
| 2001 | 17 | 4 |
| 2002 | 16 | 7 |
| 2003 | 7 | 6 |
| 2004 | 7 | 13 |
| 2005 | 13 | 21 |
| 2006 | 16 | 19 |
| 2007 | 10 | 4 |
| 2008 | 5 | 3 |
| 2009 | 7 | 8 |
| 2010 | 4 | 7 |
| 2011 | 2 | 7 |
| 2012 | 4 | 10 |
| 2013 | 7 | 6 |
| 2014 | 8 | 11 |
| 2015 | 9 | 8 |
| 2016 | 11 | 10 |
| 2017 | 13 | 10 |
| 2018 | 7 | 14 |
| 2019 | 10 | 15 |
| 2020 | 16 | 12 |
| 2021 | 15 | 18 |
| 2022 | 17 | 15 |
| 2023 | 15 | 12 |
| 2024 | 13 | 13 |
| 2025 | 9 | 6 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Chemical dispensing tank and system for dispensing liquid chemicals18 Aug 2026US 12,709,463 B1Sherman Roto Tank LLC
- Filling nozzle21 Jul 2026US 12,686,609 B2Elaflex Hiby GmbH & Co. KG
- Methods and systems for filling a prepackaged container14 Jul 2026US 12,679,579 B2Airgraft Inc.
- System and method for fuel monitoring and spill prevention19 May 2026US 12,631,479 B2BNSF Railway Company
- Engine-mounted apparatus21 Apr 2026US 12,607,138 B2Yamabiko Corporation
- Ammonia supply device and ammonia supply method17 Sep 2026US 2026/0274644 A1IHI Corporation
- System and method for fuel monitoring and spill prevention17 Sep 2026US 2026/0276426 A1BNSF Railway Company
- Tank overfill and pump runaway prevention for a fluid management system23 Jul 2026US 2026/0209026 A1Graco Minnesota Inc.
- Oil delivery process with bulk oil quality control18 Jun 2026US 2026/0167082 A1
- System and method for automatic tank gauge supervision7 May 2026US 2026/0125260 A1
Most cited
By later US patents
- Fluid delivery pipe with leak detection113US 6,032,699 AFuron Company · 2000
- Secondary contained fluid supply system87US 4,971,477 AExxon Corporation · 1990
- Coaxial hose assembly for vapor assist fuel dispensing system81US 5,720,325 AGilbarco Inc. · 1998
- Tank leakage detection method75US 4,462,249 A1984
- Method and apparatus for detecting leakage in fuel storage and delivery systems74US 4,876,530 AThe Marley Company · 1989