F01P 2031/18
Detecting fluid leaks
F01P2031/18 (Detecting fluid leaks) appears on 41 US grants and 29 published applications in this corpus.
Search patents in F01P- Granted patents
- 41
- Published applications
- 29
- Assignees
- 24
- Inventors
- 74
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 5 |
| 2003 | 5 | 2 |
| 2004 | 3 | 1 |
| 2005 | 3 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 3 |
| 2014 | 2 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 2 |
| 2018 | 4 | 2 |
| 2019 | 2 | 1 |
| 2020 | 1 | 1 |
| 2021 | 2 | 0 |
| 2022 | 2 | 2 |
| 2023 | 1 | 3 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Isolation device for isolating leaked liquid coolant and electronic equipment including isolation device7 Jul 2026US 12,677,394 B2Fulian Precision Electronics (Tianjin) Co., LTD.
- Anomaly determination device, anomaly determination method, and memory medium5 Mar 2024US 11,920,508 B2Toyota Jidosha Kabushiki Kaisha
- Diagnostic systems and methods of vehicles using olfaction28 Nov 2023US 11,828,210 B2DENSO International America, Inc.
- Vehicle20 Dec 2022US 11,530,743 B2Honda Motor Co., Ltd.
- Combustion gas leak detection strategy19 Apr 2022US 11,306,647 B1Caterpillar Inc.
- Leak detection system5 Mar 2026US 2026/0063062 A1Denso Corporation
- Isolation device for isolating leaked liquid coolant and electronic equipment including isolation device19 Oct 2023US 2023/0337395 A1Fulian Precision Electronics (Tianjin) Co., LTD.
- Anomaly determination device, anomaly determination method, and memory medium28 Sep 2023US 2023/0304435 A1Toyota Jidosha Kabushiki Kaisha
- Coupling member with sensor10 Aug 2023US 2023/0250750 A1Illinois Tool Works Inc.
- Vehicle14 Jul 2022US 2022/0221045 A1Honda Motor Co., Ltd.
Most cited
By later US patents
- Diesel engine cooling system compositions47US 4,717,495 AFleetguard, Inc. · 1988
- Apparatus for reciprocating liquid in a cooling system of an internal combustion engine34US 4,390,049 A1983
- Apparatus and method for testing, filling and purging closed fluid systems30US 4,888,980 A1989
- Cleaning apparatus and method29US 4,276,914 A1981
- Method of cleaning, and filling liquid accommodating apparatus26US 4,378,034 A1983