F02F 3/04
Having expansion-controlling inserts
Official title: having expansion-controlling inserts
F02F3/04 (Having expansion-controlling inserts) appears on 54 US grants and 25 published applications in this corpus.
Search patents in F02F- Granted patents
- 54
- Published applications
- 25
- Assignees
- 43
- Inventors
- 115
- Latest grant
- 15 Feb 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 0 | 1 |
| 2014 | 2 | 1 |
| 2015 | 3 | 2 |
| 2016 | 0 | 3 |
| 2017 | 1 | 0 |
| 2018 | 2 | 4 |
| 2019 | 2 | 1 |
| 2020 | 2 | 2 |
| 2021 | 3 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
- F02F 3/08The inserts being ring-shaped18
- F02F 3/045The inserts being located in the crown16
- F02F 3/042The inserts consisting of reinforcements in the skirt interconnecting separate wall parts12
- F02F 3/047The inserts being located around the gudgeon pin bearings4
- F02F 3/06The inserts having bimetallic effect1
Recent patents
- Four stroke relative motion cylinder with dedicated compression space15 Feb 2022US 11,248,521 B1
- Combustion-chamber structure of engine3 Aug 2021US 11,078,866 B1Mazda Motor Corporation
- Enhanced piston for improving the efficiency of an internal combustion engine13 Apr 2021US 10,975,798 B2
- Piston9 Mar 2021US 10,941,727 B2Nissan Motor Co., Ltd.
- Cylinder system with relative motion occupying structure22 Sep 2020US 10,781,770 B2
- Enhanced piston for improving the efficiency of an internal combustion engine18 Feb 2021US 2021/0047982 A1
- Piston23 Apr 2020US 2020/0123999 A1Nissan Motor Co., Ltd.
- Piston with cofused alfin ring and process to obtain it6 Feb 2020US 2020/0038948 A1Asso Werke S.R.L.
- Cylinder system with relative motion occupying structure20 Jun 2019US 2019/0186411 A1
- Method for producing a piston6 Sep 2018US 2018/0252181 A1Mahle International GmbH
Most cited
By later US patents
- Reinforced pistons53US 4,679,493 AAe PLC · 1987
- Piston of internal combustion engine32US 6,240,828 B1Nissan Motor Co., Ltd. · 2001
- Composite insert for use in a piston30US 5,425,306 ADana Corporation · 1995
- Piston for internal combustion engine17US 4,694,735 AToyota Jidosha Kabushiki Kaisha · 1987
- Cast piston having reinforced combustion bowl edge14US 5,660,156 AZollner Corporation · 1997