F02B 23/0675
The combustion space being substantially spherical, hemispherical, ellipsoid or parabolic
Official title: {the combustion space being substantially spherical, hemispherical, ellipsoid or parabolic}
F02B23/0675 (The combustion space being substantially spherical, hemispherical, ellipsoid or parabolic) appears on 68 US grants and 30 published applications in this corpus.
Search patents in F02B- Granted patents
- 68
- Published applications
- 30
- Assignees
- 37
- Inventors
- 131
- Latest grant
- 21 Sep 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 1 |
| 2008 | 3 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 3 |
| 2012 | 0 | 3 |
| 2013 | 1 | 1 |
| 2014 | 4 | 4 |
| 2015 | 1 | 2 |
| 2016 | 3 | 4 |
| 2017 | 3 | 2 |
| 2018 | 3 | 3 |
| 2019 | 3 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Internal combustion engine21 Sep 2021US 11,125,181 B2Bayerische Motoren Werke Aktiengesellschaft
- Dual-fuel constructions for opposed-piston engines with shaped combustion chambers5 Nov 2019US 10,465,616 B2Achates Power, Inc.
- Skewed combustion chamber for opposed-piston engines25 Jun 2019US 10,330,006 B2Achates Power, Inc.
- Opposed piston engine14 May 2019US 10,287,971 B2
- Two-stage precombustion chamber for large bore gas engines27 Nov 2018US 10,138,799 B2Prometheus Applied Technologies, LLC
- Internal combustion engine with hydrogen direct injection18 Dec 2025US 2025/0382911 A1Dumarey Automotive Italia S.p.A.
- Internal Combustion Engine4 Jun 2020US 2020/0173392 A1Bayerische Motoren Werke Aktiengesellschaft
- Opposed Piston Engine19 Jul 2018US 2018/0202348 A1
- Skewed combustion chamber for opposed-piston engines1 Mar 2018US 2018/0058315 A1Achates Power, Inc.
- Two-stage precombustion chamber for large bore gas engines8 Feb 2018US 2018/0038270 A1Prometheus Applied Technologies, LLC
Most cited
By later US patents
- Combustion engine71US 6,213,086 B1AVL List GmbH · 2001
- Reinforced pistons53US 4,679,493 AAe PLC · 1987
- Method and apparatus for controlling combustion quality of a gaseous-fuelled internal combustion engine47US 7,325,529 B2Westport Power Inc. · 2008
- Compression ignition direct injection internal combustion engine34US 4,207,843 A1980
- Piston-cylinder set for reciprocating internal-combustion engines, especially Otto and diesel engines33US 4,466,399 ADeutsche Forschungs- und Versuchsanstalt fur Luft- und Raumfahrt e. V. · 1984