F02M 25/025
Adding water
F02M25/025 (Adding water) appears on 493 US grants and 478 published applications in this corpus.
Search patents in F02M- Granted patents
- 493
- Published applications
- 478
- Assignees
- 206
- Inventors
- 839
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 3 | 0 |
| 1983 | 12 | 0 |
| 1984 | 12 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 9 | 0 |
| 2002 | 11 | 3 |
| 2003 | 6 | 8 |
| 2004 | 6 | 11 |
| 2005 | 4 | 14 |
| 2006 | 12 | 12 |
| 2007 | 11 | 10 |
| 2008 | 9 | 13 |
| 2009 | 7 | 11 |
| 2010 | 7 | 11 |
| 2011 | 7 | 15 |
| 2012 | 9 | 16 |
| 2013 | 11 | 21 |
| 2014 | 13 | 28 |
| 2015 | 23 | 18 |
| 2016 | 8 | 29 |
| 2017 | 15 | 34 |
| 2018 | 36 | 44 |
| 2019 | 42 | 40 |
| 2020 | 27 | 33 |
| 2021 | 37 | 29 |
| 2022 | 24 | 20 |
| 2023 | 23 | 24 |
| 2024 | 20 | 10 |
| 2025 | 8 | 12 |
| 2026 | 5 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Controller for internal combustion engine and non-transitory computer-readable storage medium storing program for internal combustion engine9 Jun 2026US 12,650,103 B2Toyota Jidosha Kabushiki Kaisha
- Split cycle engine2 Jun 2026US 12,644,406 B2Fpt Industrial S.P.A.
- Method for managing piston temperature in a vehicle26 May 2026US 12,637,987 B2Brp-Rotax GmbH & Co. KG
- System and method for injecting condensate in cylinder of a reciprocating engine21 Apr 2026US 12,607,151 B2Innio Jenbacher GmbH & Co OG
- Rotary combustion engine with integrated multistage fuel system6 Jan 2026US 12,516,623 B2
- Method for performing mechanical work, arrangement for performing mechanical work, and method for converting mechanical energy into electrical energy24 Sep 2026US 2026/0287177 A1
- Feeding and exhaust system for internal combustion engine, or thermal unit, and respective method of operation13 Aug 2026US 2026/0235064 A1Rhapis S.R.L.
- Systems and method for managing temperature in an engine of a vehicle13 Aug 2026US 2026/0235083 A1Brp-Rotax GmbH & Co. KG
- System and method for managing temperature in an engine of a vehicle13 Aug 2026US 2026/0235089 A1Brp-Rotax GmbH & Co. KG
- Engine and operating strategy augmenting tumble flow to increase fuel-air mixing30 Jul 2026US 2026/0218671 A1Caterpillar Inc.
Most cited
By later US patents
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- Apparatus and method for reducing emissions in a dual combustion mode diesel engine156US 5,875,743 ASouthwest Research Institute · 1999
- Internal combustion engine102US 4,805,571 AHumphrey Cycle Engine Partners, L.P. · 1989
- Water injection amount control system for fuel and water injection engine89US 6,112,705 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 2000
- Method of hydrating the intake air of an internal combustion engine86US 6,698,387 B12004