F02B 19/16
Chamber shapes or constructions not specific to sub-groups f02b19/02 - f02b19/10
Official title: Chamber shapes or constructions not specific to sub-groups F02B19/02 - F02B19/10
F02B19/16 (Chamber shapes or constructions not specific to sub-groups f02b19/02 - f02b19/10) appears on 342 US grants and 288 published applications in this corpus.
Search patents in F02B- Granted patents
- 342
- Published applications
- 288
- Assignees
- 140
- Inventors
- 586
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 12 | 0 |
| 1988 | 2 | 0 |
| 1989 | 9 | 0 |
| 1990 | 5 | 0 |
| 1991 | 12 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 3 | 3 |
| 2004 | 1 | 3 |
| 2005 | 4 | 0 |
| 2006 | 1 | 2 |
| 2007 | 1 | 3 |
| 2008 | 4 | 1 |
| 2009 | 2 | 5 |
| 2010 | 1 | 2 |
| 2011 | 1 | 7 |
| 2012 | 1 | 5 |
| 2013 | 2 | 9 |
| 2014 | 9 | 10 |
| 2015 | 11 | 13 |
| 2016 | 8 | 27 |
| 2017 | 20 | 18 |
| 2018 | 16 | 18 |
| 2019 | 14 | 17 |
| 2020 | 12 | 19 |
| 2021 | 31 | 21 |
| 2022 | 25 | 28 |
| 2023 | 33 | 36 |
| 2024 | 31 | 20 |
| 2025 | 7 | 10 |
| 2026 | 7 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pre-chamber combustion systems and methods11 Aug 2026US 12,704,088 B2M2X Energy Inc.
- Housing component for a prechamber component of a combustion engine9 Jun 2026US 12,650,090 B2Innio Jenbacher GmbH & Co OG
- Prechamber assembly9 Jun 2026US 12,650,107 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
- Two-stroke internal combustion engine having a combustion chamber with a pre-chamber27 Aug 2026US 2026/0251088 A1Brp-Rotax GmbH & Co. KG
- Prechamber Ignition Means for an Internal Combustion Engine and Engine Having Same20 Aug 2026US 2026/0243191 A1Bayerische Motoren Werke Aktiengesellschaft
- Cylinder head assembly for an internal combustion engine18 Jun 2026US 2026/0168432 A1
- Divided-chamber gas engine21 May 2026US 2026/0139617 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Flowpath Assembly with Composite Tube Array14 May 2026US 2026/0132759 A1General Electric Company
Most cited
By later US patents
- Fuel combustion system, method, and nozzle member therefor65US 5,024,193 ACaterpillar Inc. · 1991
- Fuel combustion assembly for an internal combustion engine having an encapsulated spark plug for igniting lean gaseous fuel within a precombustion chamber57US 5,947,076 ACaterpillar Inc. · 1999
- Use of prechambers with dual fuel source engines57US 8,925,518 B1Woodward, Inc. · 2015
- Ignition system for water-cooled gas engines54US 5,222,993 AGas Research Institute · 1993
- Swirl chamber used in association with a combustion chamber for diesel engines47US 6,899,076 B2Kubota Corporation · 2005