F02M 17/04
Having fuel inlet valve controlled by diaphragm
Official title: having fuel inlet valve controlled by diaphragm
F02M17/04 (Having fuel inlet valve controlled by diaphragm) appears on 310 US grants and 164 published applications in this corpus.
Search patents in F02M- Granted patents
- 310
- Published applications
- 164
- Assignees
- 81
- Inventors
- 359
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 8 | 0 |
| 1989 | 10 | 0 |
| 1990 | 12 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 10 | 0 |
| 1996 | 7 | 0 |
| 1997 | 8 | 0 |
| 1998 | 11 | 0 |
| 1999 | 6 | 0 |
| 2000 | 13 | 0 |
| 2001 | 14 | 6 |
| 2002 | 16 | 13 |
| 2003 | 18 | 13 |
| 2004 | 15 | 13 |
| 2005 | 10 | 9 |
| 2006 | 10 | 9 |
| 2007 | 7 | 8 |
| 2008 | 8 | 8 |
| 2009 | 8 | 7 |
| 2010 | 5 | 2 |
| 2011 | 0 | 8 |
| 2012 | 4 | 5 |
| 2013 | 3 | 6 |
| 2014 | 6 | 6 |
| 2015 | 10 | 7 |
| 2016 | 3 | 5 |
| 2017 | 5 | 8 |
| 2018 | 9 | 4 |
| 2019 | 7 | 13 |
| 2020 | 7 | 7 |
| 2021 | 7 | 3 |
| 2022 | 5 | 1 |
| 2023 | 1 | 2 |
| 2024 | 0 | 0 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of forming a diaphragm for a liquid pump13 Jan 2026US 12,523,213 B2Walbro Corporation
- Carburettor assembly30 Sep 2025US 12,429,016 B2Husqvarna AB
- Non-road engine15 Jul 2025US 12,359,644 B2Chongqing Zongshen General Power Machine Co., Ltd.
- Fuel feed unit and two-stroke engine having a fuel feed unit1 Aug 2023US 11,713,738 B2Andreas Stihl AG & CO.KG
- Fuel supply device19 Jul 2022US 11,391,248 B2Andreas Stihl AG & CO.KG
- Non-road engine30 Jan 2025US 2025/0035072 A1Chongqing Zongshen General Power Machine Co., Ltd.
- Carburettor assembly29 Jun 2023US 2023/0204005 A1Husqvarna AB
- Fuel feed unit and two-stroke engine having a fuel feed unit19 Jan 2023US 2023/0013645 A1Andreas Stihl AG & CO.KG
- Fluid driven diaphragm pump29 Dec 2022US 2022/0412337 A1Walbro Corporation
- Fuel Supply Device1 Apr 2021US 2021/0095619 A1Andreas Stihl AG & CO.KG
Most cited
By later US patents
- Carburetor and method and apparatus for controlling air/fuel ratio of same57US 5,611,312 AWalbro Corporation · 1997
- Modular diaphragm carburetor49US 6,446,939 B1Walbro Corporation · 2002
- Membrane fuel pump with pulse dampener47US 4,903,655 AAndreas Stihl AG & CO.KG · 1990
- Carburetor45US 4,271,093 AWalbro Far East, Inc. · 1981
- Membrane fuel pump for a membrane carburetor41US 5,259,352 AAndreas Stihl AG & CO.KG · 1993