F02B 19/12
Engines characterised by precombustion chambers: with positive ignition
Official title: with positive ignition (engines with non-timed positive ignition, and with incandescent chambers F02B9/08)
F02B19/12 (Engines characterised by precombustion chambers: with positive ignition) appears on 673 US grants and 550 published applications in this corpus.
Search patents in F02B- Granted patents
- 673
- Published applications
- 550
- Assignees
- 190
- Inventors
- 985
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 18 | 0 |
| 1978 | 25 | 0 |
| 1979 | 19 | 0 |
| 1980 | 14 | 0 |
| 1981 | 10 | 0 |
| 1982 | 9 | 0 |
| 1983 | 4 | 0 |
| 1984 | 9 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 3 | 0 |
| 1990 | 8 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 3 |
| 2002 | 5 | 4 |
| 2003 | 6 | 4 |
| 2004 | 1 | 4 |
| 2005 | 5 | 10 |
| 2006 | 8 | 11 |
| 2007 | 9 | 7 |
| 2008 | 6 | 10 |
| 2009 | 3 | 8 |
| 2010 | 7 | 6 |
| 2011 | 8 | 15 |
| 2012 | 4 | 12 |
| 2013 | 6 | 22 |
| 2014 | 10 | 25 |
| 2015 | 15 | 17 |
| 2016 | 17 | 53 |
| 2017 | 39 | 33 |
| 2018 | 38 | 38 |
| 2019 | 30 | 30 |
| 2020 | 29 | 27 |
| 2021 | 54 | 35 |
| 2022 | 50 | 39 |
| 2023 | 54 | 54 |
| 2024 | 48 | 44 |
| 2025 | 20 | 14 |
| 2026 | 14 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Internal combustion engine with combustion pre-chamber6 Oct 2026US 12,753,717 B2Brp-Rotax GmbH & Co. KG
- 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.
- System and method for operating an engine11 Aug 2026US 12,704,098 B2Ford Global Technologies, LLC
- Housing component for a prechamber component of a combustion engine9 Jun 2026US 12,650,090 B2Innio Jenbacher GmbH & Co OG
- System and method for monitoring by ion current the combustion in an internal combustion engine8 Oct 2026US 2026/0309113 A1Ferrari S.P. A.
- Ammonia pre-chamber internal combustion engine17 Sep 2026US 2026/0275900 A1Regents of the University of Minnesota
- Spark ignition systems for opposed piston engines and related methods17 Sep 2026US 2026/0275901 A1Enginuity Power Systems, Inc.
- Direct injection-type internal combustion engine17 Sep 2026US 2026/0275933 A1Mitsubishi Jidosha Kogyo Kabushiki Kaisha
- Direct injection-type internal combustion engine10 Sep 2026US 2026/0266211 A1Mitsubishi Jidosha Kogyo Kabushiki Kaisha
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- Internal combustion engine83US 6,279,550 B12001
- Catalytic-compression timed ignition77US 5,109,817 AAltronic, Inc. · 1992
- Cold air super-charged internal combustion engine, working cycle and method69US 6,951,211 B22005
- Combustion control system for internal combustion engines67US 4,736,718 A1988