F28F 1/022
With multiple channels
Official title: {with multiple channels}
F28F1/022 (With multiple channels) appears on 601 US grants and 916 published applications in this corpus.
Search patents in F28F- Granted patents
- 601
- Published applications
- 916
- Assignees
- 356
- Inventors
- 1,943
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 9 | 0 |
| 1999 | 8 | 0 |
| 2000 | 5 | 0 |
| 2001 | 9 | 6 |
| 2002 | 9 | 17 |
| 2003 | 14 | 15 |
| 2004 | 5 | 30 |
| 2005 | 19 | 25 |
| 2006 | 16 | 26 |
| 2007 | 9 | 24 |
| 2008 | 4 | 21 |
| 2009 | 7 | 28 |
| 2010 | 13 | 30 |
| 2011 | 4 | 33 |
| 2012 | 6 | 12 |
| 2013 | 12 | 34 |
| 2014 | 15 | 42 |
| 2015 | 15 | 36 |
| 2016 | 15 | 27 |
| 2017 | 32 | 44 |
| 2018 | 25 | 44 |
| 2019 | 37 | 49 |
| 2020 | 32 | 62 |
| 2021 | 33 | 58 |
| 2022 | 47 | 57 |
| 2023 | 44 | 47 |
| 2024 | 45 | 64 |
| 2025 | 43 | 47 |
| 2026 | 15 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Evaporator with orifice insert25 Aug 2026US 12,716,660 B2Hamilton Sundstrand Corporation
- High flow high efficiency EGR cooler21 Jul 2026US 12,687,142 B2Woodward, Inc.
- Heat exchanger30 Jun 2026US 12,669,296 B2Zhejiang Dunan Artificial Environment Co., Ltd.
- Secondarily applied cold side features for cast heat exchanger2 Jun 2026US 12,644,655 B2Rtx Corporation
- Heat exchanger and heat pump device19 May 2026US 12,631,374 B2Daikin Industries, Ltd.
- Secondarily applied cold side features for cast heat exchanger24 Sep 2026US 2026/0287277 A1Rtx Corporation
- Heat exchanger27 Aug 2026US 2026/0251397 A1
- Liquid cooling device and battery pack27 Aug 2026US 2026/0253997 A1Eve Energy Co., Ltd.
- Heat exchanger and air-conditioning apparatus20 Aug 2026US 2026/0243522 A1Mitsubishi Electric Corporation
- Heat exchanger20 Aug 2026US 2026/0243523 A1Sanden Corporation
Most cited
By later US patents
- Heat exchanger141US 6,964,296 B2Modine Manufacturing Company · 2005
- Extruded manifold with multiple passages and cross-counterflow heat exchanger incorporating same103US 5,941,303 AThermal Components, Inc. · 1999
- Method and apparatus for operating gas turbine engine heat exchangers71US 8,387,362 B22013
- Cooling apparatus having low profile extrusion61US 6,935,409 B1ThermoTek, Inc. · 2005
- Flat, multi-luminal tube for cross-flow-type indirect heat exchanger, having greater outer wall thickness towards side externally subject to corrosive inlet gas such as wet, salty air60US 4,570,700 ANippondenso Co., Ltd. · 1986