F02F 1/38
The cylinder heads being of overhead valve type
Official title: the cylinder heads being of overhead valve type
F02F1/38 (The cylinder heads being of overhead valve type) appears on 265 US grants and 112 published applications in this corpus.
Search patents in F02F- Granted patents
- 265
- Published applications
- 112
- Assignees
- 105
- Inventors
- 510
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 8 | 0 |
| 1985 | 10 | 0 |
| 1986 | 8 | 0 |
| 1987 | 9 | 0 |
| 1988 | 7 | 0 |
| 1989 | 5 | 0 |
| 1990 | 11 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 12 | 0 |
| 1999 | 7 | 0 |
| 2000 | 10 | 0 |
| 2001 | 12 | 3 |
| 2002 | 8 | 10 |
| 2003 | 9 | 4 |
| 2004 | 6 | 12 |
| 2005 | 6 | 12 |
| 2006 | 9 | 1 |
| 2007 | 4 | 2 |
| 2008 | 1 | 0 |
| 2009 | 2 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 2 | 4 |
| 2013 | 0 | 1 |
| 2014 | 3 | 4 |
| 2015 | 2 | 7 |
| 2016 | 1 | 7 |
| 2017 | 7 | 7 |
| 2018 | 9 | 6 |
| 2019 | 10 | 8 |
| 2020 | 9 | 13 |
| 2021 | 10 | 4 |
| 2022 | 5 | 2 |
| 2023 | 2 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Cylinder head for internal combustion engine4 Feb 2025US 12,215,650 B2Cummins Inc.
- Cooling apparatus20 Feb 2024US 11,905,910 B2Subaru Corporation
- Cylinder head including a cast-in water pump and integrated thermostat17 Oct 2023US 11,788,487 B2Deutz Aktiengesellschaft
- Water cooled engine10 Jan 2023US 11,549,460 B2Kubota Corporation
- Cylinder head and engine28 Jun 2022US 11,371,465 B2Komatsu Ltd.
- Cylinder head for internal combustion engine27 Jun 2024US 2024/0209810 A1Cummins Inc.
- Cylinder head including a cast-in water pump and integrated thermostat27 Oct 2022US 2022/0341372 A1Deutz Aktiengesellschaft
- Engine cylinder head16 Jun 2022US 2022/0186678 A1Mazda Motor Corporation
- Cylinder head and engine11 Nov 2021US 2021/0348579 A1Komatsu Ltd.
- System for cooling exhaust valve of a reciprocating engine9 Sep 2021US 2021/0277810 A1Ai Alpine US Bidco Inc
Most cited
By later US patents
- High efficiency low-pollution engine49US 6,026,568 ANorthrop Grumman Corporation · 2000
- Turbo-charged engine45US 4,993,227 AYamaha Hatsudoki Kabushiki Kaisha · 1991
- Variable valve timing mechanism for engine38US 6,035,817 AYamaha Hatsudoki Kabushiki Kaisha · 2000
- Internal combustion engine35US 7,069,884 B2Honda Giken Kogyo Kabushiki Kaisha · 2006
- Cylinder head camshaft mounting arrangement34US 4,823,747 ADaimler-Benz Aktiengesellschaft · 1989