F02M 26/32
Liquid-cooled heat exchangers
F02M26/32 (Liquid-cooled heat exchangers) appears on 424 US grants and 518 published applications in this corpus.
Search patents in F02M- Granted patents
- 424
- Published applications
- 518
- Assignees
- 147
- Inventors
- 1,076
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 2 |
| 2002 | 8 | 4 |
| 2003 | 6 | 14 |
| 2004 | 7 | 12 |
| 2005 | 9 | 17 |
| 2006 | 14 | 15 |
| 2007 | 16 | 29 |
| 2008 | 7 | 37 |
| 2009 | 11 | 36 |
| 2010 | 12 | 22 |
| 2011 | 16 | 24 |
| 2012 | 13 | 15 |
| 2013 | 16 | 19 |
| 2014 | 20 | 36 |
| 2015 | 21 | 42 |
| 2016 | 28 | 37 |
| 2017 | 31 | 34 |
| 2018 | 43 | 31 |
| 2019 | 31 | 24 |
| 2020 | 22 | 28 |
| 2021 | 24 | 16 |
| 2022 | 16 | 10 |
| 2023 | 12 | 10 |
| 2024 | 4 | 2 |
| 2025 | 5 | 0 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Exhaust gas heat exchanger with twisted restrictor21 Apr 2026US 12,607,412 B2RB Distribution, Inc.
- Hybrid flow heat exchangers14 Apr 2026US 12,601,546 B2Cummins Inc.
- Heat exchanger for an internal combustion engine27 Jan 2026US 12,535,276 B2Bayerische Motoren Werke Aktiengesellschaft
- Shell and tube heat exchanger with flexible diaphragm21 Oct 2025US 12,447,793 B2Transportation IP Holdings, LLC
- Core body for transfer apparatus26 Aug 2025US 12,398,960 B2Transportation IP Holdings, LLC
- Tube for heat exchange5 Mar 2026US 2026/0063370 A1Borgwarner Emissions Systems Spain, S.L.U.
- Shell and tube heat exchanger with flexible diaphragm12 Feb 2026US 2026/0042332 A1Transportation IP Holdings, LLC
- Exhaust gas heat exchanger with twisted restrictor3 Oct 2024US 2024/0328720 A1RB Distribution, Inc.
- Heat Exchanger for an Internal Combustion Engine8 Aug 2024US 2024/0263885 A1Bayerische Motoren Werke Aktiengesellschaft
- Core body for transfer apparatus19 Oct 2023US 2023/0332845 A1Transportation IP Holdings, LLC
Most cited
By later US patents
- Exhaust gas recirculation in internal combustion engines90US 5,785,030 ADry Systems Technologies · 1998
- Fast acting exhaust gas recirculation system87US 6,138,649 ASouthwest Research Institute · 2000
- System for controlling recirculated exhaust gas temperature in an internal combustion engine75US 5,732,688 ACummins Engine Company, Inc. · 1998
- Exhaust gas recirculation system having cooler73US 6,826,903 B2Denso Corporation · 2004
- Exhaust recirculation67US 4,055,158 AEthyl Corporation · 1977