F02M 5/00
Float-controlled apparatus for maintaining a constant fuel level
F02M5/00 (Float-controlled apparatus for maintaining a constant fuel level) appears on 172 US grants and 56 published applications in this corpus.
Search patents in F02M- Granted patents
- 172
- Published applications
- 56
- Assignees
- 69
- Inventors
- 243
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 9 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 8 | 0 |
| 1981 | 11 | 0 |
| 1982 | 6 | 0 |
| 1983 | 10 | 0 |
| 1984 | 7 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 2 |
| 2002 | 6 | 0 |
| 2003 | 1 | 2 |
| 2004 | 3 | 2 |
| 2005 | 1 | 1 |
| 2006 | 1 | 3 |
| 2007 | 1 | 2 |
| 2008 | 2 | 2 |
| 2009 | 4 | 3 |
| 2010 | 2 | 0 |
| 2011 | 0 | 3 |
| 2012 | 3 | 1 |
| 2013 | 1 | 4 |
| 2014 | 1 | 3 |
| 2015 | 3 | 1 |
| 2016 | 4 | 4 |
| 2017 | 6 | 3 |
| 2018 | 1 | 2 |
| 2019 | 2 | 3 |
| 2020 | 2 | 2 |
| 2021 | 4 | 6 |
| 2022 | 5 | 2 |
| 2023 | 1 | 1 |
| 2024 | 3 | 2 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02M 5/12Float-controlled apparatus for maintaining a constant fuel level: other details77
- F02M 5/08Float-controlled apparatus for maintaining a constant fuel level: having means for venting58
- F02M 5/02Float-controlled apparatus for maintaining a constant fuel level: with provisions to meet22
- F02M 5/10Float-controlled apparatus for maintaining a constant fuel level: having means for preventing21
- F02M 5/06Float-controlled apparatus for maintaining a constant fuel level: having adjustable float mechanism1
Recent patents
- Bottom feed fuel bowl10 Mar 2026US 12,571,362 B2K&N Engineering, Inc.
- Fuel supply device with injector and vapor management22 Oct 2024US 12,123,374 B2Walbro Corporation
- Bottom feed fuel bowl2 Apr 2024US 11,946,440 B2K&N Engineering, Inc.
- Fuel supply device with injector and vapor management5 Mar 2024US 11,920,544 B2Walbro Corporation
- Carburetor drain28 Mar 2023US 11,614,060 B2Kohler Co.
- Double-passage balance structure of carburetor13 Mar 2025US 2025/0084807 A1Zhejiang Ruixing Electromechanical Technology Co., Ltd.
- Six bolt carburetor float bowl housing securement9 Jan 2025US 2025/0012238 A1Weaver Intellectual Property, LLC
- Bottom feed fuel bowl25 Jul 2024US 2024/0247620 A1K&N Engineering, Inc.
- Fuel supply device with injector and vapor management30 May 2024US 2024/0175411 A1Walbro Corporation
- Fuel supply device with injector and vapor management20 Apr 2023US 2023/0123915 A1Walbro Corporation
Most cited
By later US patents
- Dual barrel carburetor for motorcycles47US 6,481,698 B1Holley Performance Products, Inc. · 2002
- Fluid control valve38US 4,196,886 AIndustrial Electronic Rubber Company · 1980
- Semiconductor device manufacturing apparatus and control method thereof29US 6,351,686 B1Mitsubishi Denki Kabushiki Kaisha · 2002
- Device for reducing evaporation loss from carburetors and fuel tanks27US 4,416,108 AOutboard Marine Corporation · 1983
- Float bowl attachment for carburetor27US 5,667,730 A1997