F02M 31/06
By hot gases
Official title: by hot gases, e.g. by mixing cold and hot air
F02M31/06 (By hot gases) appears on 349 US grants and 157 published applications in this corpus.
Search patents in F02M- Granted patents
- 349
- Published applications
- 157
- Assignees
- 151
- Inventors
- 545
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 30 | 0 |
| 1977 | 16 | 0 |
| 1978 | 22 | 0 |
| 1979 | 15 | 0 |
| 1980 | 15 | 0 |
| 1981 | 14 | 0 |
| 1982 | 13 | 0 |
| 1983 | 8 | 0 |
| 1984 | 9 | 0 |
| 1985 | 9 | 0 |
| 1986 | 9 | 0 |
| 1987 | 3 | 0 |
| 1988 | 7 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 7 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 1 |
| 2002 | 6 | 5 |
| 2003 | 3 | 7 |
| 2004 | 7 | 8 |
| 2005 | 10 | 4 |
| 2006 | 2 | 6 |
| 2007 | 6 | 6 |
| 2008 | 1 | 9 |
| 2009 | 7 | 4 |
| 2010 | 3 | 4 |
| 2011 | 3 | 13 |
| 2012 | 4 | 10 |
| 2013 | 8 | 7 |
| 2014 | 10 | 7 |
| 2015 | 3 | 6 |
| 2016 | 6 | 4 |
| 2017 | 12 | 11 |
| 2018 | 5 | 11 |
| 2019 | 7 | 10 |
| 2020 | 6 | 6 |
| 2021 | 10 | 6 |
| 2022 | 9 | 2 |
| 2023 | 5 | 4 |
| 2024 | 1 | 1 |
| 2025 | 1 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02M 31/08The gases being exhaust gases255
- F02M 31/07Temperature-responsive control34
- F02M 31/066Operated manually9
- F02M 31/062With thermostat and pneumatic actuator both working on the air mixture control4
- F02M 31/064Pneumatically controlled4
- F02M 31/068Particular constructional aspects of the switching devices3
Recent patents
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- Combustion engine with a fuel reformer and distiller assembly14 Nov 2023US 11,815,038 B2Volvo Car Corporation
- Engine system, fuel vaporization system, and method for vaporizing a secondary liquid fuel7 May 2026US 2026/0126022 A1Cummins Power Generation Inc.
- Fuel supply device and engine system30 Apr 2026US 2026/0117731 A1Yanmar Holdings Co., Ltd.
- Engine device18 Sep 2025US 2025/0290473 A1Yanmar Holdings Co., Ltd.
- Apparatus and method for controlling intake air temperature1 May 2025US 2025/0137413 A1GM Global Technology Operations LLC
- Reconfigurable surgical frame and method for use thereof3 Apr 2025US 2025/0109725 A1Warsaw Orthopedic, Inc.
Most cited
By later US patents
- Method and apparatus for operation of combustion engines205US 6,155,212 A2000
- Internal combustion engine with an exhaust gas recirculation system118US 5,740,786 AMercedes-Benz AG · 1998
- HCCI engine intake/exhaust systems for fast inlet temperature and pressure control with intake pressure boosting117US 6,675,579 B1Ford Global Technologies, LLC · 2004
- Method and apparatus for improved operation of internal combustion engines115US 5,343,699 A1994
- Energy conversion system106US 6,756,140 B12004