F02M 37/22
Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion
Official title: Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
F02M37/22 (Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion) appears on 1,531 US grants and 1,407 published applications in this corpus.
Search patents in F02M- Granted patents
- 1,531
- Published applications
- 1,407
- Assignees
- 466
- Inventors
- 2,722
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 9 | 0 |
| 1982 | 11 | 0 |
| 1983 | 12 | 0 |
| 1984 | 16 | 0 |
| 1985 | 29 | 0 |
| 1986 | 20 | 0 |
| 1987 | 14 | 0 |
| 1988 | 14 | 0 |
| 1989 | 22 | 0 |
| 1990 | 12 | 0 |
| 1991 | 11 | 0 |
| 1992 | 21 | 0 |
| 1993 | 12 | 0 |
| 1994 | 11 | 0 |
| 1995 | 17 | 0 |
| 1996 | 18 | 0 |
| 1997 | 28 | 0 |
| 1998 | 38 | 0 |
| 1999 | 34 | 0 |
| 2000 | 31 | 0 |
| 2001 | 44 | 15 |
| 2002 | 40 | 39 |
| 2003 | 37 | 40 |
| 2004 | 42 | 47 |
| 2005 | 39 | 57 |
| 2006 | 31 | 37 |
| 2007 | 28 | 44 |
| 2008 | 14 | 60 |
| 2009 | 37 | 66 |
| 2010 | 25 | 49 |
| 2011 | 35 | 52 |
| 2012 | 32 | 44 |
| 2013 | 32 | 58 |
| 2014 | 30 | 57 |
| 2015 | 38 | 55 |
| 2016 | 48 | 98 |
| 2017 | 54 | 98 |
| 2018 | 63 | 80 |
| 2019 | 88 | 83 |
| 2020 | 89 | 79 |
| 2021 | 60 | 79 |
| 2022 | 71 | 66 |
| 2023 | 63 | 35 |
| 2024 | 51 | 29 |
| 2025 | 36 | 23 |
| 2026 | 14 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fuel pressure regulartor with jet pump23 Jun 2026US 12,662,980 B2Walbro Corporation
- Dual variable displacement pump fuel system with FOC bypass and washed actuation flow23 Jun 2026US 12,662,981 B2Hamilton Sundstrand Corporation
- Membrane deoxygenation with enhanced structural integrity9 Jun 2026US 12,650,105 B2Hamilton Sundstrand Corporation
- Construction machine26 May 2026US 12,637,835 B2Hitachi Construction Machinery Co., Ltd.
- Filter element with flow directing permeability layers12 May 2026US 12,623,166 B2Atmus Filtration Inc.
- Fuel filter bypass system and bypass valve device6 Aug 2026US 2026/0226875 A1
- Multistage filter with hydrophobic screen23 Jul 2026US 2026/0208080 A1Atmus Filtration Inc.
- Straddled vehicle9 Jul 2026US 2026/0192877 A1Yamaha Hatsudoki Kabushiki Kaisha
- Deaerator18 Jun 2026US 2026/0168472 A1Fischer Panda Generators, LLC
- Method and assemblies for repair of plastic fuel lock ring and fuel supply line4 Jun 2026US 2026/0153069 A1
Most cited
By later US patents
- Rolled liquid filter using fluted media291US 5,895,574 ADonaldson Company, Inc. · 1999
- System for fueling electric powered hydraulic fracturing equipment with multiple fuel sources255US 10,020,711 B2U.S. Well Services, LLC · 2018
- Filter element having a flat and non-flat configuration185US 5,562,825 ANippondenso Co., Ltd. · 1996
- Fuel-conditioning skid147US 7,442,239 B2Ingersoll-Rand Energy Systems Corporation · 2008
- Fluid filter assembly130US 5,556,542 AFleetguard, Inc. · 1996