F02B 23/0639
The combustion space having substantially the shape of a cylinder
Official title: {the combustion space having substantially the shape of a cylinder}
F02B23/0639 (The combustion space having substantially the shape of a cylinder) appears on 48 US grants and 24 published applications in this corpus.
Search patents in F02B- Granted patents
- 48
- Published applications
- 24
- Assignees
- 37
- Inventors
- 86
- Latest grant
- 21 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 3 | 2 |
| 2004 | 3 | 2 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 3 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 2 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 4 |
| 2016 | 1 | 1 |
| 2017 | 2 | 2 |
| 2018 | 2 | 1 |
| 2019 | 0 | 3 |
| 2020 | 1 | 1 |
| 2021 | 3 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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- Fuel ignition methods for opposed piston engines and related structures27 Apr 2021US 10,989,109 B2
- Systems and methods of compression ignition engines23 Feb 2021US 10,927,750 B2Nautilus Engineering, LLC
- Systems and methods of compression ignition engines19 Jan 2021US 10,895,195 B2Nautilus Engineering, LLC
- Systems and methods of compression ignition engines2 Jun 2020US 10,669,926 B2Nautilus Engineering, LLC
- Systems and methods of compression ignition engines8 Jul 2021US 2021/0207524 A1Nautilus Engineering, LLC
- Fuel ignition methods for opposed piston engines and related structures23 Jan 2020US 2020/0025064 A1Warren Engine Company, Inc.
- Piston for internal combustion engine and method of manufacturing same26 Dec 2019US 2019/0390591 A1Hitachi Automotive Systems, Ltd.
- Systems and methods of compression ignition engines14 Mar 2019US 2019/0078499 A1Nautilus Engineering, LLC
- Multi-Fuel Combustion Methods, Devices and Engines Using the Same17 Jan 2019US 2019/0017477 A1QuantLogic Corporation
Most cited
By later US patents
- Combustion system for direct injection diesel engines95US 6,553,960 B1Yanmar Co., Ltd. · 2003
- Internal combustion engine with injection of gaseous fuel64US 6,854,438 B2Westport Germany GmbH · 2005
- Hybrid internal combustion reciprocating engine39US 4,765,293 ACessna Aircraft Company · 1988
- Internal combustion engine piston with threaded ceramic piston head37US 4,887,518 ANGK Insulators, Ltd. · 1989
- Engine piston with insulated combustion chamber21US 4,018,194 ATexaco Inc. · 1977