F02F 1/06
Shape or arrangement of cooling fins
Official title: Shape or arrangement of cooling fins; Finned cylinders
F02F1/06 (Shape or arrangement of cooling fins) appears on 73 US grants and 59 published applications in this corpus.
Search patents in F02F- Granted patents
- 73
- Published applications
- 59
- Assignees
- 47
- Inventors
- 140
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 2 |
| 2002 | 2 | 1 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 2 |
| 2007 | 3 | 0 |
| 2008 | 1 | 3 |
| 2009 | 2 | 1 |
| 2010 | 0 | 2 |
| 2011 | 2 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 4 |
| 2014 | 0 | 4 |
| 2015 | 0 | 3 |
| 2016 | 3 | 3 |
| 2017 | 8 | 11 |
| 2018 | 5 | 6 |
| 2019 | 4 | 5 |
| 2020 | 5 | 4 |
| 2021 | 4 | 1 |
| 2022 | 1 | 2 |
| 2023 | 4 | 0 |
| 2024 | 0 | 0 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Internal combustion engine25 Nov 2025US 12,480,457 B2
- Internal combustion engine18 Feb 2025US 12,228,091 B1
- Heat pipes integrated into a 3-D printed part19 Sep 2023US 11,761,369 B1The United States of America as represented by the Secretary of the Air Force
- Engine with gas exchange through piston rod27 Jun 2023US 11,686,199 B2Aquarius Engines (A.M.) Ltd.
- Internal combustion engine28 Mar 2023US 11,614,049 B2Honda Motor Co., Ltd.
- Internal combustion engine15 May 2025US 2025/0154921 A1
- Internal combustion engine6 Oct 2022US 2022/0316417 A1Honda Motor Co., Ltd.
- Engine with gas exchange through piston rod8 Sep 2022US 2022/0282620 A1Aquarius Engines (A.M.) Ltd.
- Coated cylinder liner18 Feb 2021US 2021/0047981 A1GM Global Technology Operations LLC
- Engine with work stroke and gas exchange through piston rod10 Sep 2020US 2020/0284149 A1Aquarius Engines (A.M.) Ltd.
Most cited
By later US patents
- Portable energy generation systems41US 8,567,354 B2Clear Energy Systems, Inc. · 2013
- Cylinder head assembly37US 5,421,292 ARyobi Outdoor Products · 1995
- Method for manufacturing a cylinder unit for a cylinder piston combustion engine21US 4,630,345 ASachs-Systemtechnik GmbH · 1986
- Cylinder assembly for an aircraft engine19US 6,832,589 B2Textron Lycoming, A division of Avco Corporation · 2004
- Engine cooling system17US 4,676,202 A1987