F01M 3/02
Lubrication specially adapted for engines with crankcase compression of fuel-air mixture or
Official title: with variable proportion of lubricant to fuel, lubricant to air, or lubricant to fuel-air-mixture
F01M3/02 (Lubrication specially adapted for engines with crankcase compression of fuel-air mixture or) appears on 108 US grants and 39 published applications in this corpus.
Search patents in F01M- Granted patents
- 108
- Published applications
- 39
- Assignees
- 41
- Inventors
- 162
- Latest grant
- 25 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 0 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 2 |
| 2002 | 15 | 3 |
| 2003 | 3 | 7 |
| 2004 | 6 | 1 |
| 2005 | 2 | 3 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 2 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 2 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 1 | 2 |
| 2018 | 3 | 5 |
| 2019 | 1 | 2 |
| 2020 | 2 | 1 |
| 2021 | 2 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Fuel conditioning system25 Feb 2025US 12,234,793 B1
- Device for supplying lubricant23 Mar 2021US 10,954,831 B2Ford Global Technologies, LLC
- Blow-by gas device of supercharger-equipped engine23 Feb 2021US 10,927,752 B2Mazda Motor Corporation
- Two-stage oil-injected screw air compressor21 Apr 2020US 10,626,785 B2Almig Kompressoren GmbH
- Lubricating system, an engine and method for providing lubricant to an engine31 Mar 2020US 10,605,132 B2Husqvarna AB
- Active control of gearbox case pressure30 Oct 2025US 2025/0334078 A1Hamilton Sundstrand Corporation
- Fuel conditioning system6 Feb 2025US 2025/0043755 A1
- Oil supply device16 Jan 2020US 2020/0018199 A1Aisin Seiki Kabushiki Kaisha
- Blow-by gas device of supercharger-equipped engine5 Dec 2019US 2019/0368411 A1Mazda Motor Corporation
- Device for supplying lubricant11 Jul 2019US 2019/0211720 A1Ford Global Technologies, LLC
Most cited
By later US patents
- Operation control system for internal combustion engine138US 4,993,386 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1991
- Oil injection lubrication system and methods for two-cycle engines34US 6,422,183 B1Sanshin Kogyo Kabushiki Kaisha · 2002
- Lubricating system for two-circle internal combustion engine31US 4,480,602 ASanshin Kogyo Kabushiki Kaisha · 1984
- Lubricating oil supplying system for engine29US 5,390,635 AYamaha Hatsudoki Kabushiki Kaisha · 1995
- Lubricating oil supply unit for two-cycle engines29US 5,597,051 AYamaha Hatsudoki Kabushiki Kaisha · 1997