F02F 1/20
Characterised by constructional features providing for lubrication
Official title: characterised by constructional features providing for lubrication
F02F1/20 (Characterised by constructional features providing for lubrication) appears on 147 US grants and 135 published applications in this corpus.
Search patents in F02F- Granted patents
- 147
- Published applications
- 135
- Assignees
- 86
- Inventors
- 375
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 4 |
| 2003 | 4 | 2 |
| 2004 | 5 | 3 |
| 2005 | 0 | 4 |
| 2006 | 3 | 3 |
| 2007 | 1 | 7 |
| 2008 | 3 | 3 |
| 2009 | 1 | 4 |
| 2010 | 4 | 5 |
| 2011 | 4 | 4 |
| 2012 | 1 | 12 |
| 2013 | 4 | 9 |
| 2014 | 6 | 7 |
| 2015 | 8 | 13 |
| 2016 | 7 | 7 |
| 2017 | 11 | 13 |
| 2018 | 7 | 7 |
| 2019 | 10 | 6 |
| 2020 | 6 | 8 |
| 2021 | 13 | 2 |
| 2022 | 4 | 3 |
| 2023 | 2 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cylinder17 Mar 2026US 12,577,922 B2Tpr Co., Ltd.
- Internal combustion engine and cylinder block4 Mar 2025US 12,241,405 B2Isuzu Motors Limited
- Cylinder liner and cylinder bore15 Oct 2024US 12,116,951 B2Tpr Co., Ltd.
- Method for preventing accumulation of cylinder oil at scavenging ports of low-speed marine engine5 Sep 2023US 11,746,724 B2Dalian University of Technology
- Cylinder liner and cylinder bore20 Jun 2023US 11,680,537 B2IPR Industry Co., Ltd.
- Internal combustion engine and vehicle11 Jun 2026US 2026/0160218 A1Isuzu Motors Limited
- Cylinder, internal combustion engine, and vehicle11 Jun 2026US 2026/0160219 A1Isuzu Motors Limited
- Burr-shaped cast-in cylinder liner and inspection method for same14 May 2026US 2026/0132757 A1Zynp Corporation
- Engine18 Dec 2025US 2025/0382906 A1Kubota Corporation
- Cylinder16 Oct 2025US 2025/0320843 A1Tpr Co., Ltd.
Most cited
By later US patents
- Method of depositing and using a composite coating on light metal substrates43US 5,592,927 AFord Motor Company · 1997
- Thermal spray method for coating cylinder bores for internal combustion engines38US 5,334,235 AThe Perkin-Elmer Corporation · 1994
- Cylinder liner and method for manufacturing the same35US 5,148,780 ATeikoku Piston Ring Co., Ltd. · 1992
- Process for coating automotive engine cylinders33US 5,466,906 AFord Motor Company · 1995
- Sliding structure for a reciprocating internal combustion engine and a reciprocating internal combustion engine using the sliding structure33US 6,739,238 B2Nissan Motor Co., Ltd. · 2004