F28F 9/0224
Header boxes formed by sealing end plates into covers
Official title: {Header boxes formed by sealing end plates into covers (F28F9/0221 takes precedence)}
F28F9/0224 (Header boxes formed by sealing end plates into covers) appears on 544 US grants and 581 published applications in this corpus.
Search patents in F28F- Granted patents
- 544
- Published applications
- 581
- Assignees
- 200
- Inventors
- 1,274
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 8 | 0 |
| 1991 | 6 | 0 |
| 1992 | 10 | 0 |
| 1993 | 21 | 0 |
| 1994 | 19 | 0 |
| 1995 | 6 | 0 |
| 1996 | 12 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 11 | 0 |
| 2000 | 6 | 0 |
| 2001 | 12 | 3 |
| 2002 | 6 | 17 |
| 2003 | 7 | 12 |
| 2004 | 7 | 12 |
| 2005 | 11 | 22 |
| 2006 | 12 | 23 |
| 2007 | 9 | 33 |
| 2008 | 5 | 29 |
| 2009 | 7 | 12 |
| 2010 | 8 | 15 |
| 2011 | 9 | 16 |
| 2012 | 8 | 15 |
| 2013 | 3 | 23 |
| 2014 | 6 | 17 |
| 2015 | 10 | 31 |
| 2016 | 13 | 31 |
| 2017 | 24 | 36 |
| 2018 | 21 | 33 |
| 2019 | 47 | 41 |
| 2020 | 28 | 30 |
| 2021 | 32 | 33 |
| 2022 | 19 | 35 |
| 2023 | 25 | 31 |
| 2024 | 24 | 18 |
| 2025 | 26 | 8 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heat exchanger and assembly method therefor15 Sep 2026US 12,736,290 B2Zhejiang Sanhua Automotive Components Co., Ltd.
- Collector assembly and heat exchanger with simplified structure9 Jun 2026US 12,650,265 B2Sanhua Holding Group Co., Ltd.
- Heat exchanger9 Jun 2026US 12,650,273 B2Hanon Systems
- Heat exchanger and heat pump device19 May 2026US 12,631,374 B2Daikin Industries, Ltd.
- Heat exchanger17 Mar 2026US 12,578,146 B2Sanden Corporation
- Heat exchanger and refrigeration apparatus30 Jul 2026US 2026/0218996 A1Daikin Industries, Ltd.
- Radiator header assembly for a vehicle25 Jun 2026US 2026/0177331 A1Volvo Truck Corporation
- Heat exchanger18 Jun 2026US 2026/0168705 A1Sanden Corporation
- Tube for heat exchanger12 Feb 2026US 2026/0043615 A1Valeo Systemes Thermiques
- Manifold, heat exchange apparatus and manifold manufacturing method1 Jan 2026US 2026/0002741 A1
Most cited
By later US patents
- Heat exchanger with oblong grommetted tubes and locating plates91US 5,538,079 A1996
- Receiver-integrated refrigerant condenser67US 5,546,761 ANippondenso Co., Ltd. · 1996
- Overmolded gasket, heat exchanger tank incorporating the same and method for making the same56US 5,160,474 ACadillac Rubber & Plastics, Inc. · 1992
- Manifold assembly for a parallel flow heat exchanger54US 5,107,926 AThermal Components, Inc. · 1992
- Heat exchanger bracket mounting structure47US 5,205,349 AZexel Corporation · 1993