F02M 23/08
Dependent on pressure in main combustion-air induction system
Official title: dependent on pressure in main combustion-air induction system {, e.g. pneumatic-type apparatus}
F02M23/08 (Dependent on pressure in main combustion-air induction system) appears on 149 US grants and 13 published applications in this corpus.
Search patents in F02M- Granted patents
- 149
- Published applications
- 13
- Assignees
- 51
- Inventors
- 210
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 5 | 0 |
| 1978 | 10 | 0 |
| 1979 | 10 | 0 |
| 1980 | 11 | 0 |
| 1981 | 17 | 0 |
| 1982 | 13 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 9 | 0 |
| 1986 | 9 | 0 |
| 1987 | 12 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 2 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process for controlling a gaseous blend in a combustion chamber of a two-stroke cycle of an internal combustion engine3 Mar 2026US 12,565,867 B2
- Air induction system with water detection15 Nov 2022US 11,498,582 B2Fca US LLC
- Air-fuel ratio control method reflecting brake booster inflow flow rate27 Apr 2021US 10,989,147 B2Hyundai Motor Company
- Fresh gas supply device for an internal combustion engine and method of operating same18 Jul 2017US 9,708,967 B2KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- Secondary air supply device for internal combustion engine19 Apr 2016US 9,316,179 B2Toyota Jidosha Kabushiki Kaisha
- Cycle based on compressed air by an auxiliary compressor for internal combustion engines17 Apr 2025US 2025/0122851 A1
- Reciprocating-piston internal combustion engine with device for increasing the torque thereof16 Sep 2021US 2021/0285361 A1
- Air induction system with water detection5 Aug 2021US 2021/0237756 A1Fca US LLC
- Air-fuel ratio control method reflecting brake booster inflow flow rate13 Aug 2020US 2020/0256284 A1Hyundai Motor Company
- Compressed air intake engine inlet booster20 Jul 2017US 2017/0204818 A1International Engine Intellectual Property Company, LLC
Most cited
By later US patents
- Method of reducing emission of pollutants from multi-cylinder engine61US 4,036,014 ANissan Motor Co., Ltd. · 1977
- Vacuum operated valve mechanism51US 4,310,141 A1982
- Vacuum generator in combustion engine31US 6,951,199 B2Advics Co., Ltd. · 2005
- System for blow-by gas return to the combustion chamber of an engine29US 4,920,930 AKubota Corporation · 1990
- Intake system in multi-cylinder type internal combustion engine20US 5,181,491 AHonda Giken Kogyo Kabushiki Kaisha · 1993