F02M 9/00
Carburettors having air or fuel-air mixture passage throttling valves other than of
Official title: Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type (register-type carburettors F02M11/00); Carburettors having fuel-air mixing chambers of variable shape or position
F02M9/00 (Carburettors having air or fuel-air mixture passage throttling valves other than of) appears on 369 US grants and 145 published applications in this corpus.
Search patents in F02M- Granted patents
- 369
- Published applications
- 145
- Assignees
- 112
- Inventors
- 468
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 23 | 0 |
| 1977 | 21 | 0 |
| 1978 | 30 | 0 |
| 1979 | 12 | 0 |
| 1980 | 13 | 0 |
| 1981 | 11 | 0 |
| 1982 | 10 | 0 |
| 1983 | 10 | 0 |
| 1984 | 9 | 0 |
| 1985 | 14 | 0 |
| 1986 | 7 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 9 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 6 |
| 2002 | 11 | 4 |
| 2003 | 5 | 5 |
| 2004 | 6 | 7 |
| 2005 | 5 | 7 |
| 2006 | 10 | 8 |
| 2007 | 9 | 3 |
| 2008 | 1 | 3 |
| 2009 | 4 | 7 |
| 2010 | 2 | 2 |
| 2011 | 5 | 5 |
| 2012 | 3 | 5 |
| 2013 | 3 | 3 |
| 2014 | 4 | 8 |
| 2015 | 8 | 12 |
| 2016 | 5 | 9 |
| 2017 | 8 | 9 |
| 2018 | 12 | 8 |
| 2019 | 8 | 8 |
| 2020 | 6 | 9 |
| 2021 | 10 | 9 |
| 2022 | 6 | 5 |
| 2023 | 4 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02M 9/12Carburettors having air or fuel-air mixture passage throttling valves other than of114
- F02M 9/08Carburettors having air or fuel-air mixture passage throttling valves other than of107
- F02M 9/02Carburettors having air or fuel-air mixture passage throttling valves other than of103
- F02M 9/10Carburettors having air or fuel-air mixture passage throttling valves other than of64
- F02M 9/14Carburettors having air or fuel-air mixture passage throttling valves other than of18
Recent patents
- Easy engine starting system17 Mar 2026US 12,577,929 B2Oppama Industry Co., Ltd.
- Fuel regulator25 Nov 2025US 12,480,461 B2Yamabiko Corporation
- Low pressure fuel injection system for a combustion engine30 Jan 2024US 11,885,291 B2Walbro Corporation
- Method and systems for active air fuel ratio control25 Apr 2023US 11,635,046 B1Transportation IP Holdings, LLC
- Rotary type carburetor for stratefied scavenging engine28 Mar 2023US 11,614,054 B2Zama Japan Kabushiki Kaisha
- Easy engine starting system8 Feb 2024US 2024/0044309 A1Oppama Industry Co., Ltd.
- Fuel regulator25 Jan 2024US 2024/0026841 A1Yamabiko Corporation
- Rotary type carburetor for stratefied scavenging engine14 Sep 2023US 2023/0287849 A1Zama Japan Kabushiki Kaisha
- Low pressure fuel injection system for a combustion engine14 Jul 2022US 2022/0220927 A1Walbro Corporation
- Carburetor with adjusting tool for garden machinery engine with anti-flow tampering function31 Mar 2022US 2022/0099048 A1
Most cited
By later US patents
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- Semiconductor light emitting device, method of manufacturing the same, and semiconductor light emitting device package using the same481US 8,263,987 B2Samsung Electronics Co., Ltd. · 2012
- Variable flow elastic nozzle94US 4,096,211 ARegie Nationale des Usines Renault · 1978
- Carburetor with a replaceable venturi sleeves51US 5,863,470 A1999