F02B 19/1019
With only one pre-combustion chamber
Official title: {with only one pre-combustion chamber (F02B19/1004 take precedence)}
F02B19/1019 (With only one pre-combustion chamber) appears on 473 US grants and 347 published applications in this corpus.
Search patents in F02B- Granted patents
- 473
- Published applications
- 347
- Assignees
- 155
- Inventors
- 750
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 35 | 0 |
| 1977 | 21 | 0 |
| 1978 | 35 | 0 |
| 1979 | 14 | 0 |
| 1980 | 18 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 7 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 4 |
| 2005 | 4 | 4 |
| 2006 | 3 | 2 |
| 2007 | 2 | 4 |
| 2008 | 5 | 3 |
| 2009 | 0 | 1 |
| 2010 | 1 | 3 |
| 2011 | 1 | 7 |
| 2012 | 1 | 7 |
| 2013 | 1 | 9 |
| 2014 | 9 | 16 |
| 2015 | 8 | 16 |
| 2016 | 12 | 42 |
| 2017 | 28 | 24 |
| 2018 | 32 | 30 |
| 2019 | 23 | 21 |
| 2020 | 23 | 21 |
| 2021 | 33 | 22 |
| 2022 | 28 | 25 |
| 2023 | 32 | 38 |
| 2024 | 30 | 28 |
| 2025 | 13 | 8 |
| 2026 | 7 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Passive prechamber fueling device and method1 Sep 2026US 12,723,537 B2Saudi Arabian Oil Company
- Pre-chamber combustion systems and methods11 Aug 2026US 12,704,088 B2M2X Energy Inc.
- Internal combustion engine12 May 2026US 12,624,669 B2Innio Jenbacher GmbH & Co OG
- Systems, devices and methods for input and output pressure management of air breathing engine reformers10 Mar 2026US 12,570,526 B2M2X Energy Inc.
- Spray guided stratification for fueling a passive pre-chamber3 Mar 2026US 12,565,849 B2Saudi Arabian Oil Company
- Ammonia pre-chamber internal combustion engine17 Sep 2026US 2026/0275900 A1Regents of the University of Minnesota
- Improvements relating to internal combustion engines3 Sep 2026US 2026/0258758 A1Commonwealth Scientific and Industrial Research Organisation
- Gas valve for an internal combustion engine23 Jul 2026US 2026/0210284 A1
- Passive prechamber fueling device and method23 Jul 2026US 2026/0210285 A1Aramco Services Company
- Spark plug9 Jul 2026US 2026/0196808 A1
Most cited
By later US patents
- Internal combustion engine with auxiliary combustion chamber1,410US 4,106,446 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1978
- Plasma jet ignition engine and method122US 4,203,393 AFord Motor Company · 1980
- Catalytic-compression timed ignition77US 5,109,817 AAltronic, Inc. · 1992
- Fuel combustion system, method, and nozzle member therefor65US 5,024,193 ACaterpillar Inc. · 1991
- Direct fuel injection stratified charge engine63US 5,605,125 A1997