F02B 1/00
Engines characterised by fuel-air mixture compression
Official title: Engines characterised by fuel-air mixture compression (characterised by both fuel-air mixture compression and air compression, or characterised by both positive ignition and compression ignition F02B11/00)
F02B1/00 (Engines characterised by fuel-air mixture compression) appears on 5,493 US grants and 1,076 published applications in this corpus.
Search patents in F02B- Granted patents
- 5,493
- Published applications
- 1,076
- Assignees
- 1,156
- Inventors
- 7,107
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 162 | 0 |
| 1977 | 159 | 0 |
| 1978 | 203 | 0 |
| 1979 | 120 | 0 |
| 1980 | 182 | 0 |
| 1981 | 164 | 0 |
| 1982 | 158 | 0 |
| 1983 | 176 | 0 |
| 1984 | 236 | 0 |
| 1985 | 238 | 0 |
| 1986 | 196 | 0 |
| 1987 | 228 | 0 |
| 1988 | 218 | 0 |
| 1989 | 229 | 0 |
| 1990 | 224 | 0 |
| 1991 | 232 | 0 |
| 1992 | 253 | 0 |
| 1993 | 211 | 0 |
| 1994 | 201 | 0 |
| 1995 | 191 | 0 |
| 1996 | 176 | 0 |
| 1997 | 90 | 0 |
| 1998 | 82 | 0 |
| 1999 | 54 | 0 |
| 2000 | 50 | 0 |
| 2001 | 64 | 26 |
| 2002 | 51 | 59 |
| 2003 | 91 | 97 |
| 2004 | 72 | 111 |
| 2005 | 86 | 64 |
| 2006 | 80 | 71 |
| 2007 | 51 | 62 |
| 2008 | 59 | 67 |
| 2009 | 27 | 58 |
| 2010 | 57 | 38 |
| 2011 | 40 | 35 |
| 2012 | 23 | 29 |
| 2013 | 29 | 31 |
| 2014 | 26 | 39 |
| 2015 | 32 | 43 |
| 2016 | 32 | 37 |
| 2017 | 36 | 32 |
| 2018 | 33 | 32 |
| 2019 | 28 | 48 |
| 2020 | 48 | 34 |
| 2021 | 37 | 22 |
| 2022 | 27 | 15 |
| 2023 | 11 | 11 |
| 2024 | 11 | 7 |
| 2025 | 5 | 5 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fuel agnostic compression ignition engine18 Aug 2026US 12,710,015 B2Climate Energy Investments, LLC
- Hydrogen engine10 Feb 2026US 12,546,248 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Engine27 Jan 2026US 12,535,031 B2Zhejiang CFMOTO Power Co., Ltd.
- Diesel engine6 Jan 2026US 12,516,645 B2Kubota Corporation
- Systems and methods of cylinder deactivation in high-temperature mixing-controlled engines16 Dec 2025US 12,497,926 B2Climate Energy Investments, LLC
- Compression ignition engine and system utilizing ammonia as a fuel source24 Sep 2026US 2026/0286881 A1Analytical Engineering, Inc.
- Engine Systems and Methods of Their Use12 Mar 2026US 2026/0071596 A1Alpha Portfolio LLC
- Exhaust rebreathe enabled mixing controlled compression ignition15 Jan 2026US 2026/0015983 A1Marquette University
- Hydrogen engine14 Aug 2025US 2025/0257684 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Mixed fuel system24 Apr 2025US 2025/0129737 A1
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