F01P 3/02
Arrangements for cooling cylinders or cylinder heads
F01P3/02 (Arrangements for cooling cylinders or cylinder heads) appears on 923 US grants and 868 published applications in this corpus.
Search patents in F01P- Granted patents
- 923
- Published applications
- 868
- Assignees
- 241
- Inventors
- 1,806
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 8 | 0 |
| 1984 | 9 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 10 | 0 |
| 1988 | 11 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 12 | 0 |
| 1992 | 8 | 0 |
| 1993 | 11 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 8 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 6 | 9 |
| 2002 | 12 | 12 |
| 2003 | 16 | 13 |
| 2004 | 13 | 12 |
| 2005 | 12 | 25 |
| 2006 | 21 | 19 |
| 2007 | 14 | 11 |
| 2008 | 13 | 12 |
| 2009 | 8 | 24 |
| 2010 | 8 | 17 |
| 2011 | 12 | 27 |
| 2012 | 15 | 28 |
| 2013 | 20 | 32 |
| 2014 | 28 | 20 |
| 2015 | 32 | 48 |
| 2016 | 27 | 70 |
| 2017 | 49 | 75 |
| 2018 | 59 | 74 |
| 2019 | 79 | 98 |
| 2020 | 108 | 86 |
| 2021 | 98 | 48 |
| 2022 | 57 | 39 |
| 2023 | 22 | 27 |
| 2024 | 22 | 13 |
| 2025 | 12 | 17 |
| 2026 | 15 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F01P 2003/021Cooling cylindersIndexing code267
- F01P 2003/024Cooling cylinder headsIndexing code251
- F01P 2003/027Cooling cylinders and cylinder heads in parallelIndexing code209
- F01P 2003/028Cooling cylinders and cylinder heads in seriesIndexing code200
- F01P 3/04Liquid-to-air heat-exchangers combined with, or arranged on, cylinders or cylinder heads13
Recent patents
- Internal combustion engine with combustion pre-chamber6 Oct 2026US 12,753,717 B2Brp-Rotax GmbH & Co. KG
- Heat management system and heat management method of an internal combustion engine1 Sep 2026US 12,723,535 B2Ino8 Pty Ltd.
- Valve device11 Aug 2026US 12,704,188 B2Denso Corporation
- Engine14 Jul 2026US 12,680,495 B2Yanmar Holdings Co., Ltd.
- Vehicle engine thermal management by precision cooling using series flow-type cooling system16 Jun 2026US 12,654,798 B2Harley-Davidson Motor Company
- Rotary internal combustion engine with integrated pump8 Oct 2026US 2026/0309074 A1Pratt & Whitney Canada Corp.
- Carbureted engine having an adjustable fuel to air ratio16 Jul 2026US 2026/0201854 A1INI Power Systems, Inc.
- Temperature management device18 Jun 2026US 2026/0168429 A1Aisin Corporation
- Method of determining coolant shortage and engine cooling system using the same18 Jun 2026US 2026/0168431 A1Hyundai Motor Company
- Flow channel structure and cylinder block4 Jun 2026US 2026/0153048 A1Isuzu Motors Limited
Most cited
By later US patents
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- Cooling system for a vehicle having an internal-combustion engine99US 5,215,044 ABehr GmbH & Co. · 1993
- Cylinder and piston assemblies for opposed piston engines88US 7,861,679 B2Achates Power, Inc. · 2011
- Engine cooling system67US 6,955,141 B2General Motors Corporation · 2005
- Engine cooling system providing mixed or unmixed head and block cooling65US 4,381,736 AToyota Jidosha Kogyo Kabushiki Kaisha · 1983