F02B 19/00
Engines characterised by precombustion chambers
F02B19/00 (Engines characterised by precombustion chambers) appears on 1,337 US grants and 798 published applications in this corpus.
Search patents in F02B- Granted patents
- 1,337
- Published applications
- 798
- Assignees
- 345
- Inventors
- 1,833
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 57 | 0 |
| 1977 | 55 | 0 |
| 1978 | 70 | 0 |
| 1979 | 38 | 0 |
| 1980 | 48 | 0 |
| 1981 | 31 | 0 |
| 1982 | 25 | 0 |
| 1983 | 16 | 0 |
| 1984 | 26 | 0 |
| 1985 | 19 | 0 |
| 1986 | 15 | 0 |
| 1987 | 22 | 0 |
| 1988 | 12 | 0 |
| 1989 | 22 | 0 |
| 1990 | 18 | 0 |
| 1991 | 34 | 0 |
| 1992 | 19 | 0 |
| 1993 | 17 | 0 |
| 1994 | 10 | 0 |
| 1995 | 11 | 0 |
| 1996 | 11 | 0 |
| 1997 | 13 | 0 |
| 1998 | 15 | 0 |
| 1999 | 12 | 0 |
| 2000 | 17 | 0 |
| 2001 | 13 | 4 |
| 2002 | 8 | 6 |
| 2003 | 12 | 14 |
| 2004 | 6 | 13 |
| 2005 | 14 | 21 |
| 2006 | 18 | 15 |
| 2007 | 12 | 15 |
| 2008 | 14 | 13 |
| 2009 | 4 | 13 |
| 2010 | 10 | 11 |
| 2011 | 9 | 21 |
| 2012 | 11 | 22 |
| 2013 | 8 | 33 |
| 2014 | 21 | 42 |
| 2015 | 25 | 32 |
| 2016 | 27 | 71 |
| 2017 | 52 | 46 |
| 2018 | 57 | 51 |
| 2019 | 34 | 44 |
| 2020 | 47 | 41 |
| 2021 | 73 | 51 |
| 2022 | 62 | 50 |
| 2023 | 63 | 64 |
| 2024 | 62 | 55 |
| 2025 | 25 | 21 |
| 2026 | 17 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02B 19/12Engines characterised by precombustion chambers: with positive ignition673
- F02B 19/10Engines characterised by precombustion chambers: with fuel introduced partly into pre-combustion chamber647
- F02B 19/16Chamber shapes or constructions not specific to sub-groups f02b19/02 - f02b19/10342
- F02B 19/02The chamber being periodically isolated from its cylinder176
- F02B 19/14Engines characterised by precombustion chambers: with compression ignition142
- F02B 19/08The chamber being of air-swirl type117
- F02B 19/06Engines characterised by precombustion chambers: with auxiliary piston in chamber for transferring59
- F02B 2019/006Engines characterised by precombustion chambers: with thermal insulationIndexing code34
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
- Engine7 Jul 2026US 12,674,431 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- 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
Most cited
By later US patents
- Internal combustion engine with auxiliary combustion chamber1,410US 4,106,446 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1978
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- Multimedia optical disc storing both video titles provided with AV functions and video titles with no such functions which can instantly distinguish between such kinds of titles, and a reproduction apparatus and reproduction method for such disc191US 5,771,334 AMatsushita Electric Industrial Co., Ltd. · 1998
- Premixed charge compression ignition engine with optimal combustion control152US 6,230,683 B1Cummins Engine Company, Inc. · 2001
- Premixed charge compression ignition engine with optimal combustion control139US 6,286,482 B1Cummins Engine Company, Inc. · 2001