F02M 31/14
By using heat from working cylinders or cylinder heads
Official title: by using heat from working cylinders or cylinder heads
F02M31/14 (By using heat from working cylinders or cylinder heads) appears on 65 US grants and 69 published applications in this corpus.
Search patents in F02M- Granted patents
- 65
- Published applications
- 69
- Assignees
- 47
- Inventors
- 126
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 4 |
| 2003 | 2 | 3 |
| 2004 | 2 | 2 |
| 2005 | 1 | 2 |
| 2006 | 3 | 3 |
| 2007 | 0 | 3 |
| 2008 | 0 | 4 |
| 2009 | 2 | 3 |
| 2010 | 1 | 5 |
| 2011 | 2 | 4 |
| 2012 | 0 | 4 |
| 2013 | 4 | 3 |
| 2014 | 3 | 2 |
| 2015 | 2 | 0 |
| 2016 | 2 | 7 |
| 2017 | 8 | 3 |
| 2018 | 2 | 3 |
| 2019 | 2 | 2 |
| 2020 | 1 | 2 |
| 2021 | 2 | 2 |
| 2022 | 2 | 0 |
| 2023 | 2 | 2 |
| 2024 | 2 | 2 |
| 2025 | 2 | 3 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Propane fuel system thermal management systems and methods30 Dec 2025US 12,510,044 B2Cummins Inc.
- Apparatus and method for simultaneous hydrogen production and emission control16 Sep 2025US 12,416,279 B1
- Compression emissions evacuator29 Oct 2024US 12,129,816 B2Estis Compression, LLC
- Pressure regulator warm up system for a transport refrigeration unit9 Jul 2024US 12,030,364 B2Carrier Corporation
- Method and system for radiator fan operation for charge air cooler ice elimination21 Nov 2023US 11,821,392 B2Ford Global Technologies, LLC
- Engine device18 Sep 2025US 2025/0290473 A1Yanmar Holdings Co., Ltd.
- Apparatus and Method for Simultaneous Hydrogen Production and Emission Control18 Sep 2025US 2025/0290474 A1
- Compression emissions evacuator17 Apr 2025US 2025/0122850 A1Estis Compression, LLC
- Compression emissions evacuator11 Apr 2024US 2024/0117783 A1Estis Compression, LLC
- Propane fuel system thermal management systems and methods1 Feb 2024US 2024/0035432 A1Cummins Inc.
Most cited
By later US patents
- Pipelined memory controller180US 6,272,609 B1Micron Electronics, Inc. · 2001
- Pipelined memory controller69US 6,604,180 B2Micron Technology, Inc. · 2003
- Hybrid thermal energy conversion for HCCI heated intake charge system67US 7,621,262 B2Ford Global Technologies, LLC · 2009
- Pipelined memory controller35US 6,449,703 B2Micron Electronics, Inc. · 2002
- Carburetor heating device for small snowmobile27US 4,848,294 AYamaha Hatsudoki Kabushiki Kaisha · 1989