F02B 57/02
Fuel or combustion-air supply
Official title: Fuel or combustion-air supply (cylinder-charge admission or exhaust control F02B57/04)
F02B57/02 (Fuel or combustion-air supply) appears on 14 US grants and 10 published applications in this corpus.
Search patents in F02B- Granted patents
- 14
- Published applications
- 10
- Assignees
- 3
- Inventors
- 17
- Latest grant
- 22 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 2 |
| 2022 | 2 | 2 |
| 2023 | 0 | 2 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Hydrogen-oxygen cycle engine and using method therefor22 Jul 2025US 12,366,198 B2
- Internal combustion engine with rotating pistons and cylinders and related devices and methods of using the same27 Dec 2022US 11,536,194 B2
- Rotary vane internal combustion engine30 Aug 2022US 11,428,156 B2
- Internal combustion engine with rotating pistons and cylinders and related devices and methods of using the same16 Feb 2021US 10,920,663 B1
- Orbital non-reciprocating internal combustion engine18 Apr 2017US 9,624,825 B1
- Rotational engine18 Sep 2025US 2025/0290419 A1Duplicent, LLC
- Hydrogen-oxygen cycle engine and using method therefor2 May 2024US 2024/0141825 A1
- Method for operating a gas engine with fuel supply device with selection option for direct injection and/or air path injection of fuel21 Sep 2023US 2023/0296052 A1Liebherr Machines Bulle SA
- Internal combustion engine with rotating pistons and cylinders and related devices and methods of using the same2 Feb 2023US 2023/0036422 A1
- Internal combustion engine with rotating pistons and cylinders and related devices and methods of using the same15 Dec 2022US 2022/0397055 A1
Most cited
By later US patents
- Valveless revolving cylinder engine15US 6,615,793 B12003
- Rotary piston engine8US 4,030,458 A1977
- Rotary engine8US 4,307,695 A1981
- Air flow system for circular rotary type engines3US 5,865,608 A1999
- Internal combustion engine with rotating pistons and cylinders and related devices and methods of using the same1US 10,920,663 B12021