F28D 7/1653
The conduit assemblies having a square or rectangular shape
Official title: {the conduit assemblies having a square or rectangular shape}
F28D7/1653 (The conduit assemblies having a square or rectangular shape) appears on 115 US grants and 140 published applications in this corpus.
Search patents in F28D- Granted patents
- 115
- Published applications
- 140
- Assignees
- 115
- Inventors
- 372
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 3 |
| 2003 | 3 | 4 |
| 2004 | 1 | 2 |
| 2005 | 3 | 3 |
| 2006 | 2 | 2 |
| 2007 | 2 | 2 |
| 2008 | 0 | 3 |
| 2009 | 0 | 8 |
| 2010 | 3 | 4 |
| 2011 | 2 | 2 |
| 2012 | 4 | 6 |
| 2013 | 1 | 7 |
| 2014 | 2 | 9 |
| 2015 | 1 | 2 |
| 2016 | 3 | 13 |
| 2017 | 6 | 10 |
| 2018 | 6 | 4 |
| 2019 | 8 | 12 |
| 2020 | 6 | 14 |
| 2021 | 14 | 8 |
| 2022 | 9 | 7 |
| 2023 | 7 | 11 |
| 2024 | 4 | 4 |
| 2025 | 9 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Heat exchanger and air conditioning system30 Dec 2025US 12,510,300 B2Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd.
- Multifurcating heat exchanger with independent baffles21 Oct 2025US 12,449,207 B2General Electric Company
- Heat exchanger, electric control box and air conditioning system23 Sep 2025US 12,422,152 B2Gd Midea Heating & Ventilating Equipment Co., Ltd.
- Engineered SiC-SiC composite and monolithic SiC layered structures16 Sep 2025US 12,417,853 B2General Atomics
- Heat exchanger and air conditioner10 Jun 2025US 12,326,302 B2Zhejiang Dunan Artificial Environment Co., Ltd.
- Heat Exchanger21 Nov 2024US 2024/0384938 A1Zhejiang Dunan Artificial Environment Co., Ltd.
- Heat exchanger3 Oct 2024US 2024/0328719 A1Valeo Autosystemy Sp. z o.o.
- Heat exchanger and air conditioning system30 May 2024US 2024/0175636 A1Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd.
- Multifurcating heat exchanger with independent baffles18 Apr 2024US 2024/0125556 A1General Electric Company
- Water tank assembly of heating device, and heating device21 Dec 2023US 2023/0408145 A1Wuhu Midea Kitchen and Bath Appliances Mfg. Co., Ltd.
Most cited
By later US patents
- Gas turbine engine with air/fuel heat exchanger50US 9,771,867 B2Rolls-Royce North American Technologies Inc. · 2017
- Heat exchanger assembly44US 4,415,024 AJoy Manufacturing Company · 1983
- Pump/intermediate heat exchanger assembly for a liquid metal reactor36US 4,802,531 AElectric Power Research Institute, Inc. · 1989
- Method and apparatus for minimizing adverse effects of thermal expansion in a heat exchange reactor36US 7,117,934 B2H2Gen Innovations, Inc. · 2006
- Microtube-strip heat exchanger35US 4,676,305 A1987