F02M 7/12
Carburettors with means for influencing: other installations, with moving parts, for influencing
Official title: Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves (F02M7/24 takes precedence)
F02M7/12 (Carburettors with means for influencing: other installations, with moving parts, for influencing) appears on 442 US grants and 121 published applications in this corpus.
Search patents in F02M- Granted patents
- 442
- Published applications
- 121
- Assignees
- 137
- Inventors
- 580
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 29 | 0 |
| 1977 | 16 | 0 |
| 1978 | 27 | 0 |
| 1979 | 26 | 0 |
| 1980 | 21 | 0 |
| 1981 | 29 | 0 |
| 1982 | 30 | 0 |
| 1983 | 20 | 0 |
| 1984 | 37 | 0 |
| 1985 | 24 | 0 |
| 1986 | 9 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 11 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 0 |
| 2002 | 4 | 3 |
| 2003 | 4 | 3 |
| 2004 | 4 | 6 |
| 2005 | 5 | 4 |
| 2006 | 2 | 3 |
| 2007 | 4 | 6 |
| 2008 | 6 | 7 |
| 2009 | 6 | 3 |
| 2010 | 1 | 3 |
| 2011 | 0 | 1 |
| 2012 | 2 | 6 |
| 2013 | 3 | 7 |
| 2014 | 7 | 3 |
| 2015 | 4 | 6 |
| 2016 | 3 | 7 |
| 2017 | 7 | 7 |
| 2018 | 5 | 2 |
| 2019 | 6 | 9 |
| 2020 | 7 | 11 |
| 2021 | 9 | 6 |
| 2022 | 8 | 5 |
| 2023 | 2 | 4 |
| 2024 | 7 | 5 |
| 2025 | 2 | 3 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02M 7/18With means for controlling cross-sectional area of fuel-metering orifice144
- F02M 7/14With means for controlling cross-sectional area of fuel spray nozzle122
- F02M 7/133Auxiliary jets, i.e. operating only under certain conditions78
- F02M 7/22Fuel flow cross-sectional area being controlled dependent on air-throttle-valve position70
- F02M 7/127Altering the float-chamber pressure5
Recent patents
- Carbureted engine having an adjustable fuel to air ratio14 Apr 2026US 12,601,315 B2INI Power Systems, Inc.
- Adjustment structure and carburetor17 Mar 2026US 12,577,927 B2
- Bottom feed fuel bowl10 Mar 2026US 12,571,362 B2K&N Engineering, Inc.
- De-preserving a fuel system of a turbine engine22 Jul 2025US 12,366,220 B2Rtx Corporation
- Non-road engine15 Jul 2025US 12,359,644 B2Chongqing Zongshen General Power Machine Co., Ltd.
- Carbureted engine having an adjustable fuel to air ratio16 Jul 2026US 2026/0201854 A1INI Power Systems, Inc.
- Electronic Metering Rod Actuator for Carburetor19 Jun 2025US 2025/0198369 A1Kimberlyte Holdings, LLC
- Electronic carburetor injection17 Apr 2025US 2025/0122856 A1K&N Engineering, Inc.
- Non-road engine30 Jan 2025US 2025/0035072 A1Chongqing Zongshen General Power Machine Co., Ltd.
- Method, system, and apparatus for optimizing carburetors26 Dec 2024US 2024/0426263 A1
Most cited
By later US patents
- Engine with dual sensor closed loop fuel control109US 3,939,654 AGeneral Motors Corporation · 1976
- Fuel control with learning capability for motor vehicle combustion engine86US 4,235,204 AGeneral Motors Corporation · 1980
- Carburetor and method and apparatus for controlling air/fuel ratio of same57US 5,611,312 AWalbro Corporation · 1997
- Adapter means for creating an open loop manually adjustable apparatus and system for selectively controlling the air-fuel ratio supplied to a combustion engine54US 4,556,032 AColt Industries Operating Corp. · 1985
- Apparatus and system for controlling the air-fuel ratio supplied to a combustion engine45US 4,294,282 AColt Industries Operating Corp. · 1981