F02M 25/08
Adding fuel vapours drawn from engine fuel reservoir
Official title: adding fuel vapours drawn from engine fuel reservoir {(electrical control of purge system F02D41/003)}
F02M25/08 (Adding fuel vapours drawn from engine fuel reservoir) appears on 3,632 US grants and 2,863 published applications in this corpus.
Search patents in F02M- Granted patents
- 3,632
- Published applications
- 2,863
- Assignees
- 506
- Inventors
- 4,200
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 7 | 0 |
| 1978 | 7 | 0 |
| 1979 | 13 | 0 |
| 1980 | 5 | 0 |
| 1981 | 14 | 0 |
| 1982 | 9 | 0 |
| 1983 | 10 | 0 |
| 1984 | 7 | 0 |
| 1985 | 5 | 0 |
| 1986 | 7 | 0 |
| 1987 | 25 | 0 |
| 1988 | 15 | 0 |
| 1989 | 28 | 0 |
| 1990 | 17 | 0 |
| 1991 | 34 | 0 |
| 1992 | 40 | 0 |
| 1993 | 83 | 0 |
| 1994 | 65 | 0 |
| 1995 | 75 | 0 |
| 1996 | 73 | 0 |
| 1997 | 85 | 0 |
| 1998 | 79 | 0 |
| 1999 | 81 | 0 |
| 2000 | 71 | 0 |
| 2001 | 104 | 49 |
| 2002 | 119 | 100 |
| 2003 | 104 | 102 |
| 2004 | 107 | 117 |
| 2005 | 104 | 136 |
| 2006 | 122 | 110 |
| 2007 | 98 | 126 |
| 2008 | 98 | 78 |
| 2009 | 69 | 106 |
| 2010 | 63 | 85 |
| 2011 | 65 | 106 |
| 2012 | 85 | 82 |
| 2013 | 88 | 124 |
| 2014 | 73 | 134 |
| 2015 | 116 | 187 |
| 2016 | 159 | 185 |
| 2017 | 199 | 160 |
| 2018 | 160 | 160 |
| 2019 | 152 | 156 |
| 2020 | 164 | 163 |
| 2021 | 168 | 115 |
| 2022 | 121 | 95 |
| 2023 | 105 | 79 |
| 2024 | 58 | 45 |
| 2025 | 41 | 38 |
| 2026 | 31 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02M 25/0836Arrangement of valves controlling the admission of fuel vapour to an engine1,241
- F02M 25/0809Judging failure of purge control system1,183
- F02M 25/089Layout of the fuel vapour installation1,042
- F02M 25/0854Details of the absorption canister959
- F02M 25/0872Details of the fuel vapour pipes or conduits391
- F02M 2025/0845Electromagnetic valvesIndexing code322
- F02M 2025/0881With means to heat or cool the canisterIndexing code114
- F02M 2025/0863With means dealing with condensed fuel or waterIndexing code73
Recent patents
- Fuel tank processing apparatus6 Oct 2026US 12,753,727 B2Subaru Corporation
- Purge valve control method and control device of evaporated fuel processing device6 Oct 2026US 12,753,728 B2Nissan Motor Co., Ltd.
- Two-stage fuel tank isolation valve with integrated pressure relief15 Sep 2026US 12,736,018 B2Phinia Jersey Holdings LLC
- Vehicle pipe member and method for manufacturing the same15 Sep 2026US 12,736,019 B2Usui Co., Ltd.
- Stuck-pump prevention device15 Sep 2026US 12,736,047 B2Subaru Corporation
- Evaporative emission leak detection system and detection method for engines1 Oct 2026US 2026/0298181 A1Difite (Suzhou) Co., Ltd.
- Fuel supply module10 Sep 2026US 2026/0266247 A1Walbro Corporation
- Movable diaphragm bidirectional noise reduction cannister vent solenoid (cvs) valve27 Aug 2026US 2026/0251108 A1
- Fuel tank20 Aug 2026US 2026/0241787 A1Suzuki Motor Corporation
- Fuel tank20 Aug 2026US 2026/0242023 A1Suzuki Motor Corporation
Most cited
By later US patents
- Snap-on fluidtight pipe connecting device134US 5,219,185 AITW Fastex Italia S.p.A. · 1993
- Apparatus for adsorbing fuel vapor126US 4,386,947 ANippon Soken, Inc. · 1983
- Filtration device for use with a fuel vapor recovery system124US 6,599,350 B1Hi-Stat Manufacturing Co., Inc. · 2003
- Positive pressure canister purge system integrity confirmation120US 5,146,902 ASiemens Automotive Corporation · 1992
- System for treating vaporized fuel in an internal combustion engine115US 5,056,494 AToyota Jidosha Kabushiki Kaisha · 1991