F28F 9/0229
Double end plates
Official title: {Double end plates; Single end plates with hollow spaces}
F28F9/0229 (Double end plates) appears on 187 US grants and 149 published applications in this corpus.
Search patents in F28F- Granted patents
- 187
- Published applications
- 149
- Assignees
- 137
- Inventors
- 434
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 7 | 0 |
| 1981 | 7 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 9 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 3 | 3 |
| 2003 | 1 | 2 |
| 2004 | 3 | 5 |
| 2005 | 3 | 4 |
| 2006 | 2 | 6 |
| 2007 | 4 | 6 |
| 2008 | 3 | 5 |
| 2009 | 5 | 6 |
| 2010 | 5 | 4 |
| 2011 | 2 | 4 |
| 2012 | 4 | 2 |
| 2013 | 2 | 1 |
| 2014 | 2 | 6 |
| 2015 | 2 | 8 |
| 2016 | 4 | 12 |
| 2017 | 9 | 16 |
| 2018 | 5 | 16 |
| 2019 | 13 | 5 |
| 2020 | 9 | 10 |
| 2021 | 7 | 6 |
| 2022 | 7 | 9 |
| 2023 | 6 | 2 |
| 2024 | 2 | 6 |
| 2025 | 5 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Cross-flow heat exchanger systems and methods for fabrication thereof21 Oct 2025US 12,449,205 B2Heat Transfer Technologies, Inc.
- Core body for transfer apparatus26 Aug 2025US 12,398,960 B2Transportation IP Holdings, LLC
- Apparatus, System and Method for Heat Exchanger End Plate Erosion Resistance13 Aug 2026US 2026/0235371 A1Westermeyer Industries Inc.
- Heat exchanger18 Jun 2026US 2026/0168705 A1Sanden Corporation
- Shell-and-tube heat exchanger assembly and method forlimiting a corrosion response of tubes therein9 Jan 2025US 2025/0012525 A1Carrier Corporation
- Heat exchanger for refrigerant loop14 Nov 2024US 2024/0377140 A1Valeo Systemes Thermiques
- Integrated circuit for circulating fluids for gas-absorption heat pumps31 Oct 2024US 2024/0361053 A1Ariston S.P.A.
Most cited
By later US patents
- Heat exchanger assembly for a compressor44US 4,635,712 A1987
- Shell and tube heat exchanger42US 4,871,014 ATUI Industries · 1989
- Evaporator for a refrigerant42US 5,241,839 AModine Manufacturing Company · 1993
- Shell and tube heat exchanger33US 4,858,681 ATUI Industries · 1989
- Shell-and-tube type reactor for carrying out catalytic gaseous phase reactions and a procedure for operating the same33US 7,521,029 B2MAN DWE GmbH · 2009