F28D 1/04
With tubular conduits
Official title: with tubular conduits {(F28D1/0246 takes precedence)}
F28D1/04 (With tubular conduits) appears on 3,788 US grants and 4,925 published applications in this corpus.
Search patents in F28D- Granted patents
- 3,788
- Published applications
- 4,925
- Assignees
- 1,338
- Inventors
- 8,242
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 12 | 0 |
| 1978 | 9 | 0 |
| 1979 | 12 | 0 |
| 1980 | 10 | 0 |
| 1981 | 15 | 0 |
| 1982 | 15 | 0 |
| 1983 | 16 | 0 |
| 1984 | 20 | 0 |
| 1985 | 23 | 0 |
| 1986 | 19 | 0 |
| 1987 | 24 | 0 |
| 1988 | 13 | 0 |
| 1989 | 14 | 0 |
| 1990 | 27 | 0 |
| 1991 | 27 | 0 |
| 1992 | 37 | 0 |
| 1993 | 48 | 0 |
| 1994 | 39 | 0 |
| 1995 | 28 | 0 |
| 1996 | 39 | 0 |
| 1997 | 26 | 0 |
| 1998 | 37 | 0 |
| 1999 | 46 | 0 |
| 2000 | 52 | 0 |
| 2001 | 85 | 28 |
| 2002 | 56 | 70 |
| 2003 | 56 | 72 |
| 2004 | 62 | 114 |
| 2005 | 73 | 163 |
| 2006 | 101 | 135 |
| 2007 | 71 | 175 |
| 2008 | 51 | 174 |
| 2009 | 51 | 149 |
| 2010 | 67 | 153 |
| 2011 | 71 | 197 |
| 2012 | 66 | 147 |
| 2013 | 64 | 168 |
| 2014 | 67 | 208 |
| 2015 | 94 | 242 |
| 2016 | 118 | 242 |
| 2017 | 161 | 243 |
| 2018 | 221 | 275 |
| 2019 | 247 | 273 |
| 2020 | 217 | 297 |
| 2021 | 228 | 264 |
| 2022 | 219 | 303 |
| 2023 | 196 | 250 |
| 2024 | 213 | 241 |
| 2025 | 202 | 214 |
| 2026 | 113 | 128 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cooling module6 Oct 2026US 12,753,974 B2Hanon Systems
- Heat exchanger6 Oct 2026US 12,753,977 B2Kyungdong Navien Co., Ltd.
- Indoor unit of air conditioner29 Sep 2026US 12,747,871 B2Fujitsu General Limited
- Heat exchanger and air-conditioning apparatus22 Sep 2026US 12,742,603 B2Mitsubishi Electric Corporation
- Evaporative condenser15 Sep 2026US 12,736,258 B2Kyungdong Navien Co., Ltd.
- Composite Heat Exchanger8 Oct 2026US 2026/0309426 A1Hyundai Wia Corporation
- Heat exchanger for automobiles8 Oct 2026US 2026/0309427 A1Estra Automotive Systems Co., Ltd.
- Heat exchanger8 Oct 2026US 2026/0309428 A1Hanon Systems
- Radiator-type device with heat pipe for comfortable heating and cooling1 Oct 2026US 2026/0298545 A1Enover Isi Sistemleri Anonim Sirketi
- Air cooled heat exchanger with intermediate airflow module24 Sep 2026US 2026/0287265 A1Evapco, Inc.
Most cited
By later US patents
- CPU cooling system192US 6,166,907 A2000
- Heat exchanger141US 6,964,296 B2Modine Manufacturing Company · 2005
- Electronic enclosure cooling system115US 4,911,231 ABICC Public Limited Company · 1990
- Extruded manifold with multiple passages and cross-counterflow heat exchanger incorporating same103US 5,941,303 AThermal Components, Inc. · 1999
- Heat exchange assembly97US 5,638,900 AAil Research Inc. · 1997