F02F 11/005
Involving cylinder liners
Official title: {involving cylinder liners}
F02F11/005 (Involving cylinder liners) appears on 31 US grants and 41 published applications in this corpus.
Search patents in F02F- Granted patents
- 31
- Published applications
- 41
- Assignees
- 32
- Inventors
- 110
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 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 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 0 | 1 |
| 2015 | 0 | 4 |
| 2016 | 1 | 8 |
| 2017 | 2 | 3 |
| 2018 | 2 | 2 |
| 2019 | 3 | 1 |
| 2020 | 1 | 1 |
| 2021 | 3 | 3 |
| 2022 | 2 | 4 |
| 2023 | 2 | 0 |
| 2024 | 3 | 2 |
| 2025 | 1 | 2 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Engine assembly oil management14 Jul 2026US 12,680,519 B2Arctic Cat Inc.
- Piston cylinder system and method14 Apr 2026US 12,601,310 B2Innio Waukesha Gas Engines Inc.
- Interchangeable engine assembly10 Feb 2026US 12,546,270 B2Arctic Cat Inc.
- Seal for cylinder liner assembly and method for making the same4 Nov 2025US 12,460,598 B1Caterpillar Inc.
- Rotary engine with side housing having a side plate with a ceramic matrix composite core1 Oct 2024US 12,104,550 B1Pratt & Whitney Canada Corp.
- Interchangeable engine assembly18 Jun 2026US 2026/0168462 A1Arctic Cat Inc.
- Cylinder liner for internal combustion engine18 Jun 2026US 2026/0168463 A1Caterpillar Inc.
- Piston cylinder system and method2 Apr 2026US 2026/0092574 A1Innio Waukesha Gas Engines Inc.
- Piston cylinder system and method2 Apr 2026US 2026/0092575 A1Innio Waukesha Gas Engines Inc.
- Cylinder head gasket and cylinder liner for internal combustion engine19 Feb 2026US 2026/0049660 A1Caterpillar Inc.
Most cited
By later US patents
- Engine cylinder liner having a mid stop34US 4,244,330 ACummins Engine Company, Inc. · 1981
- Anti-polishing ring17US 5,553,585 AWartsila Diesel International Ltd Oy · 1996
- Internal combustion engine for a portable handheld work apparatus16US 5,645,026 AAndreas Stihl AG & CO.KG · 1997
- Cylinder liner sealing structure13US 5,125,375 ADeere & Company · 1992
- Advanced antipolishing ring arrangement13US 6,367,463 B1Wartsila NSD OY AB · 2002