F02F 1/40
Cylinder heads with means for directing, guiding, or distributing liquid stream
Official title: cylinder heads with means for directing, guiding, or distributing liquid stream
F02F1/40 (Cylinder heads with means for directing, guiding, or distributing liquid stream) appears on 372 US grants and 345 published applications in this corpus.
Search patents in F02F- Granted patents
- 372
- Published applications
- 345
- Assignees
- 129
- Inventors
- 846
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 9 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 2 |
| 2002 | 5 | 6 |
| 2003 | 2 | 6 |
| 2004 | 11 | 9 |
| 2005 | 5 | 11 |
| 2006 | 11 | 4 |
| 2007 | 8 | 8 |
| 2008 | 1 | 3 |
| 2009 | 4 | 11 |
| 2010 | 7 | 11 |
| 2011 | 7 | 16 |
| 2012 | 5 | 24 |
| 2013 | 13 | 15 |
| 2014 | 18 | 10 |
| 2015 | 14 | 19 |
| 2016 | 10 | 31 |
| 2017 | 19 | 36 |
| 2018 | 27 | 19 |
| 2019 | 24 | 23 |
| 2020 | 25 | 27 |
| 2021 | 30 | 11 |
| 2022 | 22 | 15 |
| 2023 | 11 | 11 |
| 2024 | 13 | 8 |
| 2025 | 8 | 4 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cylinder head structure5 May 2026US 12,618,356 B2Kubota Corporation
- Engine cylinder head with temperature-reducing pressure sensor bore3 Mar 2026US 12,565,853 B2Caterpillar Inc.
- Air-cooled, four-stroke aviation engine30 Sep 2025US 12,429,010 B2Textron Innovations Inc.
- Cylinder head for an internal combustion engine with a combustion chamber and the use of a sealing sleeve to seal off a cylinder head16 Sep 2025US 12,416,275 B2Deutz Aktiengesellschaft
- Internal combustion engine2 Sep 2025US 12,404,819 B2Deutz Aktiengesellschaft
- Injection valve for fuels, cylinder head with injection valve, method for installing an injection valve into a cylinder head, and use of a cylindrical receptacle of a cylinder head as the outer shell of an injection valve18 Jun 2026US 2026/0168458 A1
- Cylinder head4 Jun 2026US 2026/0153061 A1Toyota Jidosha Kabushiki Kaisha
- Internal combustion engine having a top-down cooling concept12 Mar 2026US 2026/0071587 A1AVL List GmbH
- Liquid-cooled cylinder head26 Feb 2026US 2026/0055740 A1AVL List GmbH
- Air-cooled, four-stroke aviation engine22 Jan 2026US 2026/0022676 A1Textron Innovations Inc.
Most cited
By later US patents
- Turbo-charged engine45US 4,993,227 AYamaha Hatsudoki Kabushiki Kaisha · 1991
- Cylinder head cooling arrangement35US 5,094,193 AYamaha Hatsudoki Kabushiki Kaisha · 1992
- Internal combustion engine33US 7,191,740 B2Honda Giken Kogyo Kabushiki Kaisha · 2007
- Turbocharged engine cylinder head internal cooling33US 7,784,442 B2GM Global Technology Operations LLC · 2010
- Cylinder head cooling structure for water-cooled multicylinder engine28US 4,889,079 AHonda Giken Kogyo Kabushiki Kaisha · 1989