F28F 21/08
Constructions of heat-exchange apparatus characterised by the selection of particular materials: of
Official title: of metal
F28F21/08 (Constructions of heat-exchange apparatus characterised by the selection of particular materials: of) appears on 1,513 US grants and 2,219 published applications in this corpus.
Search patents in F28F- Granted patents
- 1,513
- Published applications
- 2,219
- Assignees
- 1,019
- Inventors
- 4,734
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 8 | 0 |
| 1980 | 11 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 9 | 0 |
| 1984 | 1 | 0 |
| 1985 | 9 | 0 |
| 1986 | 12 | 0 |
| 1987 | 7 | 0 |
| 1988 | 15 | 0 |
| 1989 | 10 | 0 |
| 1990 | 13 | 0 |
| 1991 | 14 | 0 |
| 1992 | 8 | 0 |
| 1993 | 11 | 0 |
| 1994 | 8 | 0 |
| 1995 | 9 | 0 |
| 1996 | 10 | 0 |
| 1997 | 7 | 0 |
| 1998 | 17 | 0 |
| 1999 | 19 | 0 |
| 2000 | 16 | 0 |
| 2001 | 18 | 16 |
| 2002 | 23 | 30 |
| 2003 | 29 | 38 |
| 2004 | 17 | 34 |
| 2005 | 17 | 39 |
| 2006 | 18 | 43 |
| 2007 | 17 | 50 |
| 2008 | 11 | 46 |
| 2009 | 9 | 62 |
| 2010 | 23 | 78 |
| 2011 | 18 | 80 |
| 2012 | 37 | 63 |
| 2013 | 26 | 91 |
| 2014 | 39 | 96 |
| 2015 | 49 | 123 |
| 2016 | 58 | 126 |
| 2017 | 78 | 128 |
| 2018 | 96 | 165 |
| 2019 | 118 | 150 |
| 2020 | 125 | 147 |
| 2021 | 108 | 120 |
| 2022 | 98 | 124 |
| 2023 | 72 | 123 |
| 2024 | 76 | 89 |
| 2025 | 55 | 82 |
| 2026 | 44 | 76 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cold plate and method for manufacturing cold plate6 Oct 2026US 12,753,978 B2Fujikura Ltd.
- Metal structural member used in cooperation with gallium-based liquid metal, manufacturing method therefor, and application thereof15 Sep 2026US 12,735,792 B2Yunnan Zhongxuan Liquid Metal Technology Co., Ltd
- Air conditioner constituent unit and air conditioner15 Sep 2026US 12,736,232 B2Daikin Industries, Ltd.
- Heat exchanger and assembly method therefor15 Sep 2026US 12,736,290 B2Zhejiang Sanhua Automotive Components Co., Ltd.
- Internally profiled tubes18 Aug 2026US 12,710,236 B2Paralloy Limited
- Thermal energy storage8 Oct 2026US 2026/0309431 A1Magaldi Power S.P.A.
- Multimaterial heat-transfer systems with controlled interface behavior1 Oct 2026US 2026/0298508 A1
- Multi-layer thermo-mechanical architectures for compact energy extraction systems1 Oct 2026US 2026/0298509 A1
- Method for Passivating a Metal Surface, Particularly an Aluminum Surface24 Sep 2026US 2026/0287283 A1Mahle International GmbH
- Advanced thermal management systems with hydrocarbon-coated aluminum cooling chambers17 Sep 2026US 2026/0276252 A1
Most cited
By later US patents
- Modular microchannel heat exchanger201US 5,727,618 A1998
- Method of making microchanneled heat exchangers utilizing sacrificial cores156US 5,317,805 AMinnesota Mining and Manufacturing Company · 1994
- Microscopic tube material and its method of manufacture118US 5,352,512 AThe United States of America as represented by the Secretary of the Air Force · 1994
- Method of manufacturing microscopic tube material113US 5,011,566 AThe United States of America as represented by the Secretary of the Air Force · 1991
- Extracorporeal circuit blood heat exchanger109US 4,231,425 A1980