F28F 13/003
Arrangements for modifying heat-transfer: by using permeable mass, perforated or porous materials
Official title: {by using permeable mass, perforated or porous materials (F28F13/18 takes precedence)}
F28F13/003 (Arrangements for modifying heat-transfer: by using permeable mass, perforated or porous materials) appears on 446 US grants and 520 published applications in this corpus.
Search patents in F28F- Granted patents
- 446
- Published applications
- 520
- Assignees
- 355
- Inventors
- 1,275
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 6 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 12 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 8 | 0 |
| 2000 | 11 | 0 |
| 2001 | 3 | 7 |
| 2002 | 14 | 7 |
| 2003 | 6 | 12 |
| 2004 | 8 | 13 |
| 2005 | 8 | 16 |
| 2006 | 11 | 13 |
| 2007 | 10 | 15 |
| 2008 | 10 | 19 |
| 2009 | 2 | 20 |
| 2010 | 8 | 18 |
| 2011 | 9 | 15 |
| 2012 | 9 | 12 |
| 2013 | 9 | 30 |
| 2014 | 14 | 17 |
| 2015 | 12 | 15 |
| 2016 | 10 | 24 |
| 2017 | 14 | 29 |
| 2018 | 12 | 35 |
| 2019 | 21 | 25 |
| 2020 | 36 | 30 |
| 2021 | 24 | 29 |
| 2022 | 18 | 31 |
| 2023 | 23 | 29 |
| 2024 | 28 | 27 |
| 2025 | 19 | 18 |
| 2026 | 8 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Wire mesh laminated porous material and pipes containing porous material27 Aug 2026US 2026/0249584 A1Mitsubishi Materials Corporation
- Compression system with overhead tichelmann heat exchangers13 Aug 2026US 2026/0235338 A1Ikg Performance Engineering Gbr
- Electrically heated metal foam component and reactor device including an electrically heated metal foam element30 Jul 2026US 2026/0218997 A1Alantum Europe GmbH
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- Heat exchanger material and heat exchanger for cryogenic cooling systems, and a system16 Jul 2026US 2026/0202149 A1Bluefors Oy
Most cited
By later US patents
- Pitch-based carbon foam heat sink with phase change material114US 6,037,032 ALockheed Martin Energy Research Corporation · 2000
- Particulate heating/cooling agents109US 5,314,005 A1994
- Method of making open cell material88US 6,660,224 B2National Research Council of Canada · 2003
- Heat exchanger with transpired, highly porous fins70US 6,378,605 B1Midwest Research Institute · 2002
- Pitch-based carbon foam heat sink with phase change material70US 6,399,149 B1UT-Battelle, LLC · 2002