F01M 2005/004
Oil-cooled engines
Official title: {Oil-cooled engines}
F01M2005/004 (Oil-cooled engines) appears on 33 US grants and 35 published applications in this corpus.
Search patents in F01M- Granted patents
- 33
- Published applications
- 35
- Assignees
- 29
- Inventors
- 89
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 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 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 0 | 6 |
| 2016 | 2 | 1 |
| 2017 | 3 | 4 |
| 2018 | 1 | 3 |
| 2019 | 6 | 3 |
| 2020 | 1 | 4 |
| 2021 | 4 | 2 |
| 2022 | 8 | 3 |
| 2023 | 1 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi temperature generator and engine shared oil2 Sep 2025US 12,404,808 B2Hamilton Sundstrand Corporation
- Oil cooler assembly and method of improving cooling systems of all-terrain vehicle24 Oct 2023US 11,795,844 B1
- Diverter fittings for cooling systems of an engine13 Dec 2022US 11,525,385 B2Caterpillar Inc.
- Work vehicle engine with split-circuit lubrication system1 Nov 2022US 11,486,277 B2Deere & Company
- Circulating coolant fluid in hybrid electrical propulsion systems27 Sep 2022US 11,453,508 B2Pratt & Whitney Canada Corp.
- Internal combustion engine and internal combustion engine system18 Jun 2026US 2026/0168413 A1Isuzu Motors Limited
- Internal combustion engine18 Dec 2025US 2025/0382907 A1Toyota Jidosha Kabushiki Kaisha
- Multi temperature generator and engine shared oil17 Jul 2025US 2025/0230772 A1Hamilton Sundstrand Corporation
- Oil filter housing system, oil filtration system, and engine system19 Dec 2024US 2024/0418109 A1Cummins Inc.
- Cooling device for vehicle rotating machine9 Feb 2023US 2023/0042471 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Oil-cooled internal combustion engine20US 4,926,800 ASteyr-Daimler-Puch AG · 1990
- Internal combustion engine with reduced noise and heat emissions11US 4,715,335 A1987
- Oil lubricating and cooling system for engines9US 5,031,580 ASuzuki Jidosha Kogyo Kabushiki Kaisha · 1991
- Foundation frame for an internal combustion engine and electrical generator set7US 4,174,482 ASulzer Brothers Limited · 1979
- Engine cooling system7US 4,793,302 APerkins Engines Group Limited · 1988