F02B 23/04
The combustion space being subdivided into two or more chambers
Official title: the combustion space being subdivided into two or more chambers (with pre-combustion chambers F02B19/00)
F02B23/04 (The combustion space being subdivided into two or more chambers) appears on 57 US grants and 39 published applications in this corpus.
Search patents in F02B- Granted patents
- 57
- Published applications
- 39
- Assignees
- 33
- Inventors
- 88
- Latest grant
- 9 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 3 |
| 2004 | 1 | 0 |
| 2005 | 1 | 4 |
| 2006 | 2 | 0 |
| 2007 | 1 | 1 |
| 2008 | 3 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 4 |
| 2011 | 2 | 1 |
| 2012 | 1 | 2 |
| 2013 | 0 | 0 |
| 2014 | 3 | 4 |
| 2015 | 1 | 1 |
| 2016 | 3 | 1 |
| 2017 | 1 | 3 |
| 2018 | 2 | 5 |
| 2019 | 0 | 2 |
| 2020 | 5 | 2 |
| 2021 | 3 | 2 |
| 2022 | 1 | 0 |
| 2023 | 1 | 2 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Power device capable of generating greater propelling force9 Jan 2024US 11,866,160 B2
- Systems and methods of compression ignition engines21 Mar 2023US 11,608,773 B2Nautilus Engineering, LLC
- Automobile engine13 Dec 2022US 11,524,774 B2
- Diesel engine with turbulent jet ignition30 Nov 2021US 11,187,142 B2Board of Trustees of Michigan State University
- Systems and methods of compression ignition engines23 Feb 2021US 10,927,750 B2Nautilus Engineering, LLC
- Power device capable of generating greater propelling force14 Mar 2024US 2024/0083572 A1
- Pistonless combustion flywheel engine design for low fuel consumption21 Dec 2023US 2023/0407780 A1Halo3 Holdings LLC
- Power device capable of generating greater propelling force23 Feb 2023US 2023/0056477 A1
- Ignition Piston 218 Nov 2021US 2021/0355858 A1
- Systems and methods of compression ignition engines8 Jul 2021US 2021/0207524 A1Nautilus Engineering, LLC
Most cited
By later US patents
- Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression73US 7,874,155 B2SustainX, Inc. · 2011
- Combustion chamber configurations for two cycle engines31US 4,872,433 A1989
- Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression26US 8,225,606 B2SustainX, Inc. · 2012
- Prechamber combustion system23US 6,854,439 B22005
- Apparatus and method for mode-switching fuel injector nozzle23US 7,243,862 B2Delphi Technologies, Inc. · 2007