F28D 9/0093
Multi-circuit heat-exchangers
Official title: {Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids}
F28D9/0093 (Multi-circuit heat-exchangers) appears on 448 US grants and 607 published applications in this corpus.
Search patents in F28D- Granted patents
- 448
- Published applications
- 607
- Assignees
- 285
- Inventors
- 1,272
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 8 | 0 |
| 2001 | 4 | 4 |
| 2002 | 3 | 9 |
| 2003 | 10 | 13 |
| 2004 | 5 | 14 |
| 2005 | 8 | 11 |
| 2006 | 11 | 11 |
| 2007 | 9 | 9 |
| 2008 | 7 | 12 |
| 2009 | 1 | 7 |
| 2010 | 9 | 16 |
| 2011 | 3 | 14 |
| 2012 | 7 | 17 |
| 2013 | 8 | 20 |
| 2014 | 7 | 17 |
| 2015 | 8 | 28 |
| 2016 | 17 | 60 |
| 2017 | 20 | 43 |
| 2018 | 35 | 44 |
| 2019 | 42 | 47 |
| 2020 | 41 | 43 |
| 2021 | 38 | 33 |
| 2022 | 22 | 28 |
| 2023 | 22 | 37 |
| 2024 | 32 | 29 |
| 2025 | 21 | 28 |
| 2026 | 19 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heat exchange assembly1 Sep 2026US 12,723,821 B2Zhejiang Sanhua Automotive Components Co., Ltd.
- Suspension pylon for an aircraft engine fitted with a counterflow cooling exchanger23 Jun 2026US 12,663,218 B2Liebherr-Aerospace Toulouse SAS
- Heat-treatment module for a vehicle heat-treatment system16 Jun 2026US 12,654,510 B2Valeo Systemes Thermiques
- Liquid desiccant air conditioner modules having interlocking panels for controlling airflow16 Jun 2026US 12,656,019 B2Copeland Corporation
- Heat exchanger, heat exchange assembly, and heat management system16 Jun 2026US 12,656,065 B2Zhejiang Sanhua Automotive Components Co., Ltd.
- Heat exchanger and energy storage device6 Aug 2026US 2026/0229643 A1Huawei Digital Power Technologies Co., Ltd.
- Heat exchanger and vehicle air conditioning device16 Jul 2026US 2026/0202137 A1Sanden Corporation
- Three-dimensional hollow heat exchanger and its applications16 Jul 2026US 2026/0202151 A1Zhejiang Normal University
- Combined condenser-evaporator9 Jul 2026US 2026/0194271 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Heat exchanger9 Jul 2026US 2026/0194301 A1Denso Corporation
Most cited
By later US patents
- Miniaturized reaction apparatus120US 6,537,506 B1Cellular Process Chemistry, Inc. · 2003
- Three-circuit stacked plate heat exchanger114US 5,462,113 AFlatPlate, Inc. · 1995
- Method and apparatus for rapidly varying the operating temperature of a semiconductor device in a testing environment101US 5,977,785 A1999
- Integrated plate-fin heat exchange reformation84US 5,324,452 AAir Products and Chemicals, Inc. · 1994
- Integral heater-evaporator core68US 5,180,004 AGeneral Motors Corporation · 1993