F02F 3/025
Having circumferentially slotted piston skirts
Official title: {having circumferentially slotted piston skirts, e.g. T-slots}
F02F3/025 (Having circumferentially slotted piston skirts) appears on 12 US grants and 5 published applications in this corpus.
Search patents in F02F- Granted patents
- 12
- Published applications
- 5
- Assignees
- 12
- Inventors
- 25
- Latest grant
- 25 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Piston for assembly with a cylinder25 Mar 2025US 12,258,922 B2Cummins Inc.
- Asymmetric piston12 Sep 2017US 9,759,156 B2Mahle International GmbH
- Piston for internal combustion engine8 Jan 2013US 8,347,843 B1
- Piston with a cooling gallery5 Apr 2011US 7,918,155 B2Mahle International GmbH
- Piston for an internal combustion engine19 May 2009US 7,533,649 B2Mahle International GmbH
- Piston for assembly with a cylinder30 May 2024US 2024/0175407 A1Cummins Inc.
- Asymmetric piston8 Sep 2016US 2016/0258382 A1Mahle International GmbH
- Piston with a cooling gallery18 Jun 2009US 2009/0151555 A1Mahle International GmbH
- Piston for an internal combustion engine9 Oct 2008US 2008/0245335 A1Mahle International GmbH
- Piston having uncoupled skirt18 Oct 2001US 2001/0029840 A1Federal-Mogul World Wide, Inc.
Most cited
By later US patents
- Piston having uncoupled skirt18US 6,588,320 B2Federal-Mogul World Wide, Inc. · 2003
- Trunk piston for use in an internal combustion engine17US 4,856,417 ANissan Motor Co., Ltd. · 1989
- Piston for internal combustion engine17US 8,347,843 B12013
- Light plunger piston for internal combustion engines10US 5,158,008 AMahle GmbH · 1992
- Piston for an internal combustion engine9US 7,533,649 B2Mahle International GmbH · 2009