F01M 3/04
Lubrication specially adapted for engines with crankcase compression of fuel-air mixture or
Official title: for upper cylinder lubrication only
F01M3/04 (Lubrication specially adapted for engines with crankcase compression of fuel-air mixture or) appears on 26 US grants and 15 published applications in this corpus.
Search patents in F01M- Granted patents
- 26
- Published applications
- 15
- Assignees
- 17
- Inventors
- 51
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 3 | 2 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 2 |
| 2024 | 0 | 0 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Production of cylinder oil21 Oct 2025US 12,448,585 B2A. P. Møller-Mærsk A/S
- Production of cylinder oil17 Jun 2025US 12,331,263 B2A.P. Moller-Maersk A/S
- Method for preventing accumulation of cylinder oil at scavenging ports of low-speed marine engine5 Sep 2023US 11,746,724 B2Dalian University of Technology
- Lubricating oil composition19 Jun 2018US 10,000,719 B2Infineum International Limited
- Oil passage for supplying oil26 Sep 2017US 9,771,890 B2Hyundai Motor Company
- Production of cylinder oil28 Dec 2023US 2023/0416635 A1A.P. Moller-Maersk A/S
- Production of cylinder oil30 Nov 2023US 2023/0383213 A1A. P. Møller-Mærsk A/S
- Method for preventing accumulation of cylinder oil at scavenging ports of low-speed marine engine16 Jun 2022US 2022/0186677 A1Dalian University of Technology
- Sequential injection lubrication system for internal combustion engine operating on natural gas or alternative fuels6 Oct 2016US 2016/0290187 A1
- Oil passage for supplying oil18 Jun 2015US 2015/0167582 A1Hyundai Motor Company
Most cited
By later US patents
- Four-stroke internal combustion engine27US 5,579,735 AMcCulloch Corporation · 1996
- Four-stroke internal combustion engine25US 5,347,967 AMcCulloch Corporation · 1994
- Rotary-reciprocal combustion engines18US 5,301,637 A1994
- Fuel treating apparatus for internal combustion engines and method of operating same9US 4,440,115 A1984
- Lubricant metering system for rotary internal combustion engine6US 4,463,718 ADeere & Company · 1984