F28F 9/0231
Header boxes having an expansion chamber
Official title: {Header boxes having an expansion chamber}
F28F9/0231 (Header boxes having an expansion chamber) appears on 74 US grants and 41 published applications in this corpus.
Search patents in F28F- Granted patents
- 74
- Published applications
- 41
- Assignees
- 57
- Inventors
- 151
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 2 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 2 |
| 2016 | 1 | 1 |
| 2017 | 4 | 2 |
| 2018 | 1 | 2 |
| 2019 | 2 | 2 |
| 2020 | 0 | 5 |
| 2021 | 3 | 5 |
| 2022 | 3 | 2 |
| 2023 | 5 | 2 |
| 2024 | 3 | 3 |
| 2025 | 2 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and method to prevent splitting or rupture in fluid coils26 May 2026US 12,638,242 B2Coil Master Corporation
- Heat exchanger with expansion joint insert for thermal expansion and external force tolerance23 Dec 2025US 12,504,240 B2Rolls-Royce North American Technologies Inc.
- Heat exchanger closure assemblies and methods of using and installing the same28 Oct 2025US 12,455,123 B2Lummus Technology Inc.
- Combined deaerator and manifold for a coolant system of a vehicle29 Oct 2024US 12,130,098 B2Cooper-Standard Automotive Inc.
- Heat exchanger closure assemblies and methods of using and installing the same30 Apr 2024US 11,971,229 B2Lummus Technology Inc.
- Heat exchanger, evaporator, device, and moving body13 Aug 2026US 2026/0235365 A1National University Corporation Tokai National Higher Education and Research System
- Heat exchanger with expansion joint insert for thermal expansion and external force tolerance30 Oct 2025US 2025/0334355 A1Rolls-Royce North American Technologies Inc.
- Microchannel Heat Exchanger15 May 2025US 2025/0155199 A1Carrier Corporation
- Thermal management module26 Dec 2024US 2024/0426562 A1Hanon Systems
- Heat exchanger closure assemblies and methods of using and installing the same14 Mar 2024US 2024/0085126 A1Lummus Technology Inc.
Most cited
By later US patents
- Heat exchangers with integral surge tanks60US 4,011,905 ABorg-Warner Corporation · 1977
- Heat exchanger for marine engine cooling system38US 5,746,270 ABrunswick Corporation · 1998
- Automatic positive anti-aeration system for engine cooling system32US 4,006,775 A1977
- Method and apparatus for cooling and deaerating internal combustion engine coolant29US 3,989,103 AWhite Motor Corporation · 1976
- Device for tightly assembling a collector and a water box in heat exchanger26US 4,401,157 AValeo · 1983