F02M 31/20
Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture: for cooling
Official title: for cooling ({F02M31/005 takes precedence; use of cold F02M17/52;} cooling of charging-air or of scavenging-air F02B29/04)
F02M31/20 (Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture: for cooling) appears on 355 US grants and 319 published applications in this corpus.
Search patents in F02M- Granted patents
- 355
- Published applications
- 319
- Assignees
- 186
- Inventors
- 894
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 14 | 0 |
| 2000 | 5 | 0 |
| 2001 | 17 | 4 |
| 2002 | 12 | 11 |
| 2003 | 10 | 9 |
| 2004 | 5 | 7 |
| 2005 | 7 | 6 |
| 2006 | 6 | 12 |
| 2007 | 6 | 9 |
| 2008 | 6 | 3 |
| 2009 | 4 | 7 |
| 2010 | 5 | 5 |
| 2011 | 4 | 12 |
| 2012 | 8 | 6 |
| 2013 | 5 | 25 |
| 2014 | 6 | 15 |
| 2015 | 12 | 19 |
| 2016 | 15 | 16 |
| 2017 | 10 | 18 |
| 2018 | 18 | 19 |
| 2019 | 22 | 21 |
| 2020 | 14 | 13 |
| 2021 | 22 | 29 |
| 2022 | 24 | 17 |
| 2023 | 23 | 5 |
| 2024 | 12 | 6 |
| 2025 | 7 | 13 |
| 2026 | 10 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Air cooling systems for snowmobiles1 Sep 2026US 12,723,538 B2Arctic Cat Inc.
- Systems and method for vehicle thermal management28 Jul 2026US 12,692,812 B2
- Engine7 Jul 2026US 12,674,431 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Marine methanol inert gas blanketing16 Jun 2026US 12,655,817 B2Caterpillar Inc.
- System and a method for reducing hydrogen knocking in a hydrogen internal combustion engine2 Jun 2026US 12,644,424 B1United Arab Emirates University
- Intake temperature management systems for compression ignition of small molecule fuels10 Sep 2026US 2026/0266249 A1
- Fuel tank arrangement, marine vessel and method for cooling fuel comprising ammonia20 Aug 2026US 2026/0242047 A1WäRtsilä Finland Oy
- High Pressure Fuel Pump With Configuration To Mitigate Cavitation9 Jul 2026US 2026/0194033 A1
- Fuel cooler21 May 2026US 2026/0139648 A1Isuzu Motors Limited
- Diagnostic method for vehicle cooling system and diagnostic device for vehicle cooling system30 Apr 2026US 2026/0116372 A1
Most cited
By later US patents
- Premixed charge compression ignition engine with optimal combustion control152US 6,230,683 B1Cummins Engine Company, Inc. · 2001
- Premixed charge compression ignition engine with optimal combustion control139US 6,286,482 B1Cummins Engine Company, Inc. · 2001
- Method and apparatus for cooling the inlet air of gas turbine and internal combustion engine prime movers106US 5,790,972 A1998
- Finned plate heat exchanger82US 6,536,516 B2Long Manufacturing Ltd. · 2003
- Internal combustion engine equipped with fuel reforming system69US 6,318,306 B1Nissan Motor Co., Ltd. · 2001