F02M 25/0224
Water treatment or cleaning
Official title: {Water treatment or cleaning (F02M25/032 takes precedence)}
F02M25/0224 (Water treatment or cleaning) appears on 69 US grants and 86 published applications in this corpus.
Search patents in F02M- Granted patents
- 69
- Published applications
- 86
- Assignees
- 55
- Inventors
- 189
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 2 | 3 |
| 2007 | 2 | 2 |
| 2008 | 2 | 7 |
| 2009 | 2 | 4 |
| 2010 | 2 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 2 |
| 2016 | 2 | 1 |
| 2017 | 0 | 11 |
| 2018 | 3 | 4 |
| 2019 | 2 | 8 |
| 2020 | 4 | 11 |
| 2021 | 9 | 10 |
| 2022 | 7 | 5 |
| 2023 | 5 | 4 |
| 2024 | 3 | 0 |
| 2025 | 0 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for injecting condensate in cylinder of a reciprocating engine21 Apr 2026US 12,607,151 B2Innio Jenbacher GmbH & Co OG
- Method of controlling water injection in an internal combustion engine22 Oct 2024US 12,123,365 B2Plastic Omnium Advanced Innovation and Research
- Split cycle internal combustion engine provided with a water injection30 Apr 2024US 11,970,966 B2Dolphin N2 Limited
- Device for supplying injection water2 Jan 2024US 11,859,580 B2Hyundai Motor Company
- Exchangeable filter of a treatment device for treatment of, in particular, liquid fluids and a treatment device21 Nov 2023US 11,821,395 B2Mann+Hummel GmbH
- Filter medium and method of production thereof7 May 2026US 2026/0126021 A1Neenah Gessner GmbH
- Vehicle powered by a hydrogen power system11 Sep 2025US 2025/0286089 A1Volvo Construction Equipment AB
- System and method for injecting condensate in cylinder of a reciprocating engine14 Aug 2025US 2025/0257698 A1Innio Jenbacher GmbH & Co OG
- Method of controlling water injection in an internal combustion engine30 Nov 2023US 2023/0383704 A1Plastic Omnium Advanced Innovation and Research
- Split cycle internal combustion engine provided with a water injection7 Sep 2023US 2023/0279804 A1Dolphin N2 Limited
Most cited
By later US patents
- Reduction of nitrogen oxides emissions from diesel engines58US 5,535,708 APlatinum Plus, Inc. · 1996
- Reduction of nitrogen oxides emissions from diesel engines41US 5,404,841 A1995
- Rotary pulsation apparatus34US 4,332,486 A1982
- Water injection system for an internal combustion engine of a marine propulsion system29US 6,289,853 B1Brunswick Corporation · 2001
- System for and methods of operating diesel engines to reduce harmful exhaust emissions and to improve engine lubrication26US 6,892,531 B22005