F01P 11/0276
Draining or purging
Official title: {Draining or purging}
F01P11/0276 (Draining or purging) appears on 154 US grants and 87 published applications in this corpus.
Search patents in F01P- Granted patents
- 154
- Published applications
- 87
- Assignees
- 80
- Inventors
- 268
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 12 | 0 |
| 2001 | 4 | 1 |
| 2002 | 6 | 7 |
| 2003 | 14 | 8 |
| 2004 | 6 | 5 |
| 2005 | 5 | 4 |
| 2006 | 4 | 1 |
| 2007 | 2 | 2 |
| 2008 | 2 | 4 |
| 2009 | 0 | 2 |
| 2010 | 3 | 2 |
| 2011 | 2 | 2 |
| 2012 | 2 | 3 |
| 2013 | 1 | 1 |
| 2014 | 3 | 4 |
| 2015 | 4 | 3 |
| 2016 | 6 | 2 |
| 2017 | 0 | 2 |
| 2018 | 5 | 2 |
| 2019 | 3 | 4 |
| 2020 | 5 | 7 |
| 2021 | 4 | 7 |
| 2022 | 8 | 3 |
| 2023 | 6 | 4 |
| 2024 | 4 | 2 |
| 2025 | 2 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vehicle pump assembly and off-road vehicle12 May 2026US 12,624,653 B2Kawasaki Motors, Ltd.
- Engine coolant draining device17 Feb 2026US 12,553,376 B1
- Coolant filler neck assembly having integrated coolant overflow reservoir23 Dec 2025US 12,503,972 B2Harley-Davidson Motor Company
- Liquid filling device9 Sep 2025US 12,410,742 B1Lih Yann Industrial Co., Ltd.
- Cylinder head with integrated turbocharger1 Oct 2024US 12,104,520 B2Fca US LLC
- Coolant filler neck assembly having integrated coolant overflow resevoir5 Mar 2026US 2026/0063061 A1Harley-Davidson Motor Company
- Engine coolant draining device19 Feb 2026US 2026/0049568 A1
- Device and method for exchanging vehicle fluids25 Dec 2025US 2025/0389220 A1Volvo Truck Corporation
- Liquid filling device11 Sep 2025US 2025/0283427 A1Lih Yann Industrial Co., Ltd.
- Vehicle pump assembly and off-road vehicle14 Aug 2025US 2025/0257681 A1Kawasaki Motors, Ltd.
Most cited
By later US patents
- Marine engine cooling system with a check valve to facilitate draining52US 6,379,201 B1Brunswick Corporation · 2002
- Automatic positive anti-aeration system for engine cooling system32US 4,006,775 A1977
- Recycling drain pan30US 4,114,644 A1978
- Drain system for marine vessel29US 6,050,867 ABrunswick Corporation · 2000
- Draincock for automotive cooling system24US 3,948,481 AThe Weatherhead Company · 1976