F02B 1/02
Engines characterised by fuel-air mixture compression: with positive ignition
Official title: with positive ignition (with non-timed positive ignition F02B9/06)
F02B1/02 (Engines characterised by fuel-air mixture compression: with positive ignition) appears on 4,715 US grants and 287 published applications in this corpus.
Search patents in F02B- Granted patents
- 4,715
- Published applications
- 287
- Assignees
- 1,015
- Inventors
- 6,007
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 162 | 0 |
| 1977 | 159 | 0 |
| 1978 | 202 | 0 |
| 1979 | 118 | 0 |
| 1980 | 174 | 0 |
| 1981 | 163 | 0 |
| 1982 | 156 | 0 |
| 1983 | 175 | 0 |
| 1984 | 236 | 0 |
| 1985 | 236 | 0 |
| 1986 | 196 | 0 |
| 1987 | 225 | 0 |
| 1988 | 214 | 0 |
| 1989 | 229 | 0 |
| 1990 | 223 | 0 |
| 1991 | 232 | 0 |
| 1992 | 253 | 0 |
| 1993 | 210 | 0 |
| 1994 | 200 | 0 |
| 1995 | 189 | 0 |
| 1996 | 175 | 0 |
| 1997 | 89 | 0 |
| 1998 | 78 | 0 |
| 1999 | 52 | 0 |
| 2000 | 43 | 0 |
| 2001 | 45 | 15 |
| 2002 | 23 | 25 |
| 2003 | 34 | 24 |
| 2004 | 21 | 19 |
| 2005 | 17 | 12 |
| 2006 | 14 | 7 |
| 2007 | 4 | 4 |
| 2008 | 4 | 7 |
| 2009 | 6 | 3 |
| 2010 | 1 | 7 |
| 2011 | 7 | 6 |
| 2012 | 4 | 5 |
| 2013 | 7 | 8 |
| 2014 | 3 | 12 |
| 2015 | 12 | 15 |
| 2016 | 10 | 16 |
| 2017 | 19 | 19 |
| 2018 | 20 | 13 |
| 2019 | 8 | 26 |
| 2020 | 26 | 12 |
| 2021 | 16 | 10 |
| 2022 | 11 | 9 |
| 2023 | 7 | 4 |
| 2024 | 4 | 5 |
| 2025 | 1 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydrogen engine10 Feb 2026US 12,546,248 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Engine27 Jan 2026US 12,535,031 B2Zhejiang CFMOTO Power Co., Ltd.
- Epicyclic rotary engine14 Jan 2025US 12,196,127 B1
- Internal combustion engine with spark plug and prechamber spark plug10 Sep 2024US 12,085,009 B2Robert Bosch GmbH
- Bypass system for engine startup5 Mar 2024US 11,920,509 B2Cummins Inc.
- Engine Systems and Methods of Their Use12 Mar 2026US 2026/0071596 A1Alpha Portfolio LLC
- Hydrogen engine14 Aug 2025US 2025/0257684 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Mixed fuel system24 Apr 2025US 2025/0129737 A1
- Scalable energy generator30 Jan 2025US 2025/0035035 A1WB Development Company, LLC
- Engine14 Nov 2024US 2024/0376842 A1Zhejiang CFMOTO Power Co., Ltd.
Most cited
By later US patents
- Internal combustion engine1,364US 4,054,108 AGeneral Motors Corporation · 1977
- Crystalline aluminosilicate PSH-3 and its process of preparation322US 4,439,409 ABayer Aktiengesellschaft · 1984
- Combustion gas-powered fastener driving tool230US 4,483,474 ASignode Corporation · 1984
- Combustion gas powered fastener driving tool208US 4,403,722 ASignode Corporation · 1983
- Method and apparatus for reducing nitrogen oxides from internal combustion engine207US 5,272,871 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1993