F28D 1/053
The conduits being straight
Official title: the conduits being straight
F28D1/053 (The conduits being straight) appears on 2,236 US grants and 3,031 published applications in this corpus.
Search patents in F28D- Granted patents
- 2,236
- Published applications
- 3,031
- Assignees
- 752
- Inventors
- 4,885
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 8 | 0 |
| 1978 | 3 | 0 |
| 1979 | 6 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 9 | 0 |
| 1983 | 12 | 0 |
| 1984 | 14 | 0 |
| 1985 | 6 | 0 |
| 1986 | 7 | 0 |
| 1987 | 12 | 0 |
| 1988 | 5 | 0 |
| 1989 | 9 | 0 |
| 1990 | 14 | 0 |
| 1991 | 13 | 0 |
| 1992 | 26 | 0 |
| 1993 | 30 | 0 |
| 1994 | 30 | 0 |
| 1995 | 19 | 0 |
| 1996 | 27 | 0 |
| 1997 | 15 | 0 |
| 1998 | 23 | 0 |
| 1999 | 29 | 0 |
| 2000 | 28 | 0 |
| 2001 | 47 | 14 |
| 2002 | 24 | 41 |
| 2003 | 25 | 35 |
| 2004 | 30 | 52 |
| 2005 | 38 | 91 |
| 2006 | 50 | 87 |
| 2007 | 40 | 114 |
| 2008 | 31 | 118 |
| 2009 | 30 | 98 |
| 2010 | 41 | 93 |
| 2011 | 48 | 133 |
| 2012 | 46 | 79 |
| 2013 | 39 | 109 |
| 2014 | 43 | 124 |
| 2015 | 52 | 151 |
| 2016 | 68 | 150 |
| 2017 | 103 | 135 |
| 2018 | 130 | 164 |
| 2019 | 149 | 152 |
| 2020 | 118 | 179 |
| 2021 | 131 | 166 |
| 2022 | 133 | 197 |
| 2023 | 121 | 160 |
| 2024 | 137 | 158 |
| 2025 | 125 | 146 |
| 2026 | 73 | 85 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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.
- Heat exchanger and refrigeration cycle apparatus8 Sep 2026US 12,729,915 B2Mitsubishi Electric 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.
- Cooking system and heat exchanger with combustion chamber17 Sep 2026US 2026/0271942 A1
Most cited
By later US patents
- 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
- Heat and mass exchanger94US 7,269,966 B2AIL Reasearch, Inc. · 2007