F02F 3/225
The liquid being directed into blind holes
Official title: {the liquid being directed into blind holes}
F02F3/225 (The liquid being directed into blind holes) appears on 19 US grants and 16 published applications in this corpus.
Search patents in F02F- Granted patents
- 19
- Published applications
- 16
- Assignees
- 15
- Inventors
- 42
- Latest grant
- 16 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 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 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 2 | 2 |
| 2014 | 1 | 2 |
| 2015 | 2 | 3 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 0 | 1 |
| 2019 | 3 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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- Piston having oil return passage19 Dec 2023US 11,846,351 B2Mahle Automotive Technologies (China) Co., Ltd.
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- Piston for an internal combustion engine7 Apr 2020US 10,612,489 B2Mahle International GmbH
- Method for coating cooling channel with coating containing hexagonal boron nitride9 Apr 2019US 10,252,293 B2Mahle International GmbH
- Piston with oil return passage and engine11 May 2023US 2023/0145204 A1Mahle Automotive Technologies (China) Co., Ltd.
- Pistons and piston assemblies for internal combustion engines10 Nov 2022US 2022/0356834 A1Cummins Inc.
- Piston for an internal combustion engine2 Jan 2020US 2020/0003150 A1Mahle International GmbH
- Method for coating the surface of a closed cooling channel of a piston for an internal combustion engine and piston that can be produced by said method14 Jun 2018US 2018/0163310 A1Mahle International GmbH
- Piston for an internal combustion engine22 Jun 2017US 2017/0175671 A1Mahle International GmbH
Most cited
By later US patents
- Piston head with bores15US 5,086,736 AMahle GmbH · 1992
- Piston for a reciprocating piston machine, particularly an internal combustion engine13US 4,363,293 ASociete d'Etudes de Machines Thermiques S.E.M.T. · 1982
- Single-part cooling channel piston for a combustion engine11US 6,698,392 B1Mahle GmbH · 2004
- Light alloy piston for internal combustion engines7US 4,987,866 AKolbenschmidt Aktiengesellschaft · 1991
- Piston upper part of an assembled or welded piston with extended cooling spaces6US 8,973,548 B2KS Kolbenschmidt GmbH · 2015