F02M 7/00
Carburettors with means for influencing
Official title: Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions (choke valves for starting F02M1/00)
F02M7/00 (Carburettors with means for influencing) appears on 824 US grants and 220 published applications in this corpus.
Search patents in F02M- Granted patents
- 824
- Published applications
- 220
- Assignees
- 212
- Inventors
- 1,084
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 41 | 0 |
| 1977 | 32 | 0 |
| 1978 | 62 | 0 |
| 1979 | 47 | 0 |
| 1980 | 42 | 0 |
| 1981 | 59 | 0 |
| 1982 | 52 | 0 |
| 1983 | 46 | 0 |
| 1984 | 57 | 0 |
| 1985 | 37 | 0 |
| 1986 | 15 | 0 |
| 1987 | 12 | 0 |
| 1988 | 10 | 0 |
| 1989 | 5 | 0 |
| 1990 | 11 | 0 |
| 1991 | 10 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 10 | 0 |
| 1997 | 7 | 0 |
| 1998 | 15 | 0 |
| 1999 | 5 | 0 |
| 2000 | 8 | 0 |
| 2001 | 13 | 3 |
| 2002 | 12 | 8 |
| 2003 | 8 | 6 |
| 2004 | 10 | 11 |
| 2005 | 9 | 8 |
| 2006 | 9 | 6 |
| 2007 | 12 | 12 |
| 2008 | 8 | 11 |
| 2009 | 10 | 3 |
| 2010 | 3 | 8 |
| 2011 | 0 | 4 |
| 2012 | 3 | 8 |
| 2013 | 5 | 11 |
| 2014 | 12 | 11 |
| 2015 | 7 | 14 |
| 2016 | 9 | 14 |
| 2017 | 17 | 18 |
| 2018 | 15 | 12 |
| 2019 | 12 | 10 |
| 2020 | 8 | 12 |
| 2021 | 11 | 8 |
| 2022 | 11 | 6 |
| 2023 | 3 | 4 |
| 2024 | 7 | 5 |
| 2025 | 3 | 6 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02M 7/12Carburettors with means for influencing: other installations, with moving parts, for influencing442
- F02M 7/23Fuel aerating devices237
- F02M 7/06Means for enriching charge on sudden air throttle opening, i.e. at acceleration144
- F02M 7/10Carburettors with means for influencing: other installations, without moving parts, for influencing76
- F02M 7/02Carburettors having aerated fuel spray nozzles15
- F02M 7/04Means for enriching charge at high combustion-air flow10
Recent patents
- Carbureted engine having an adjustable fuel to air ratio14 Apr 2026US 12,601,315 B2INI Power Systems, Inc.
- Unidirectional fuel nozzle for improving fuel atomization in a carburetor or similar apparatus7 Apr 2026US 12,595,775 B2
- 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
- Carbureted engine having an adjustable fuel to air ratio16 Jul 2026US 2026/0201854 A1INI Power Systems, Inc.
- A unidirectional fuel nozzle for improving fuel atomization in a carburetor or similar apparatus10 Jul 2025US 2025/0223936 A1
- Electronic Metering Rod Actuator for Carburetor19 Jun 2025US 2025/0198369 A1Kimberlyte Holdings, LLC
- Fuel injection throttle body22 May 2025US 2025/0163874 A1Holley Performance Products, Inc.
- Electronic carburetor injection17 Apr 2025US 2025/0122856 A1K&N Engineering, Inc.
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
- Air/fuel ratio control for an internal combustion engine using an exhaust gas sensor70US 4,252,098 AChrysler Corporation · 1981
- 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