F28D 1/0535
The conduits having a non-circular cross-section
Official title: {the conduits having a non-circular cross-section}
F28D1/0535 (The conduits having a non-circular cross-section) appears on 1,842 US grants and 2,521 published applications in this corpus.
Search patents in F28D- Granted patents
- 1,842
- Published applications
- 2,521
- Assignees
- 554
- Inventors
- 3,975
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 4 | 0 |
| 1984 | 8 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 7 | 0 |
| 1990 | 12 | 0 |
| 1991 | 13 | 0 |
| 1992 | 24 | 0 |
| 1993 | 27 | 0 |
| 1994 | 27 | 0 |
| 1995 | 13 | 0 |
| 1996 | 19 | 0 |
| 1997 | 14 | 0 |
| 1998 | 22 | 0 |
| 1999 | 24 | 0 |
| 2000 | 24 | 0 |
| 2001 | 41 | 14 |
| 2002 | 21 | 40 |
| 2003 | 22 | 33 |
| 2004 | 26 | 50 |
| 2005 | 36 | 81 |
| 2006 | 45 | 83 |
| 2007 | 35 | 105 |
| 2008 | 29 | 112 |
| 2009 | 29 | 89 |
| 2010 | 39 | 85 |
| 2011 | 43 | 112 |
| 2012 | 41 | 61 |
| 2013 | 37 | 80 |
| 2014 | 40 | 101 |
| 2015 | 43 | 120 |
| 2016 | 54 | 122 |
| 2017 | 88 | 107 |
| 2018 | 102 | 137 |
| 2019 | 127 | 121 |
| 2020 | 102 | 142 |
| 2021 | 93 | 131 |
| 2022 | 96 | 165 |
| 2023 | 102 | 131 |
| 2024 | 114 | 130 |
| 2025 | 107 | 104 |
| 2026 | 54 | 65 |
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.
- 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, refrigeration cycle apparatus, and method for manufacturing heat exchanger8 Sep 2026US 12,729,920 B2Mitsubishi Electric Corporation
- Heat exchanger8 Oct 2026US 2026/0309428 A1Hanon Systems
- Air cooled heat exchanger with intermediate airflow module24 Sep 2026US 2026/0287265 A1Evapco, Inc.
- Heat exchanger and air conditioner employing the same10 Sep 2026US 2026/0266565 A1Samsung Electronics Co., Ltd.
- Fin, heat exchanger and water heater3 Sep 2026US 2026/0259013 A1Guangdong Midea Kitchen and Bath Appliances Mfg. Co., Ltd.
- Heat exchanger, heat dissipation module, and compute device27 Aug 2026US 2026/0251398 A1Huawei Technologies Co., Ltd.
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