F02B 1/04
With fuel-air mixture admission into cylinder
Official title: with fuel-air mixture admission into cylinder
F02B1/04 (With fuel-air mixture admission into cylinder) appears on 4,563 US grants and 213 published applications in this corpus.
Search patents in F02B- Granted patents
- 4,563
- Published applications
- 213
- Assignees
- 976
- Inventors
- 5,756
- Latest grant
- 14 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 159 | 0 |
| 1977 | 153 | 0 |
| 1978 | 201 | 0 |
| 1979 | 118 | 0 |
| 1980 | 173 | 0 |
| 1981 | 161 | 0 |
| 1982 | 151 | 0 |
| 1983 | 162 | 0 |
| 1984 | 229 | 0 |
| 1985 | 232 | 0 |
| 1986 | 193 | 0 |
| 1987 | 219 | 0 |
| 1988 | 209 | 0 |
| 1989 | 225 | 0 |
| 1990 | 222 | 0 |
| 1991 | 227 | 0 |
| 1992 | 249 | 0 |
| 1993 | 208 | 0 |
| 1994 | 197 | 0 |
| 1995 | 187 | 0 |
| 1996 | 174 | 0 |
| 1997 | 87 | 0 |
| 1998 | 75 | 0 |
| 1999 | 49 | 0 |
| 2000 | 43 | 0 |
| 2001 | 42 | 14 |
| 2002 | 22 | 25 |
| 2003 | 34 | 23 |
| 2004 | 21 | 17 |
| 2005 | 15 | 11 |
| 2006 | 14 | 5 |
| 2007 | 2 | 4 |
| 2008 | 3 | 3 |
| 2009 | 5 | 0 |
| 2010 | 0 | 3 |
| 2011 | 2 | 1 |
| 2012 | 1 | 1 |
| 2013 | 2 | 4 |
| 2014 | 1 | 11 |
| 2015 | 9 | 11 |
| 2016 | 9 | 11 |
| 2017 | 15 | 17 |
| 2018 | 19 | 12 |
| 2019 | 6 | 13 |
| 2020 | 13 | 10 |
| 2021 | 7 | 1 |
| 2022 | 6 | 7 |
| 2023 | 7 | 4 |
| 2024 | 4 | 4 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- 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.
- Buffered internal combustion engine5 Mar 2024US 11,920,546 B2
- Multiple cylinder engine16 Jan 2024US 11,873,754 B2Impact Consulting and Engineering LLC
- Mixed fuel system24 Apr 2025US 2025/0129737 A1
- Engine19 Sep 2024US 2024/0309799 A1Kawasaki Motors, Ltd.
- Internal Combustion Engine with Spark Plug and Prechamber Spark Plug11 Jul 2024US 2024/0229705 A9Robert Bosch GmbH
- Buffered Internal Combustion Engine23 May 2024US 2024/0167438 A1
- Internal Combustion Engine with Spark Plug and Prechamber Spark Plug25 Apr 2024US 2024/0133337 A1Robert Bosch GmbH
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