F28D 1/05333
With multiple rows of conduits or with multi-channel conduits
Official title: {with multiple rows of conduits or with multi-channel conduits (F28D1/05341 takes precedence)}
F28D1/05333 (With multiple rows of conduits or with multi-channel conduits) appears on 101 US grants and 143 published applications in this corpus.
Search patents in F28D- Granted patents
- 101
- Published applications
- 143
- Assignees
- 108
- Inventors
- 367
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 3 |
| 2005 | 2 | 4 |
| 2006 | 1 | 2 |
| 2007 | 2 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 3 |
| 2010 | 0 | 4 |
| 2011 | 1 | 5 |
| 2012 | 1 | 3 |
| 2013 | 1 | 12 |
| 2014 | 0 | 3 |
| 2015 | 1 | 3 |
| 2016 | 1 | 9 |
| 2017 | 3 | 6 |
| 2018 | 4 | 8 |
| 2019 | 4 | 10 |
| 2020 | 7 | 16 |
| 2021 | 10 | 7 |
| 2022 | 8 | 15 |
| 2023 | 7 | 5 |
| 2024 | 10 | 7 |
| 2025 | 4 | 10 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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- Heat exchanger2 Jul 2026US 2026/0185780 A1Kyungdong Navien Co., Ltd.
Most cited
By later US patents
- Heat and mass exchanger94US 7,269,966 B2AIL Reasearch, Inc. · 2007
- Heat and mass exchanger39US 7,966,841 B2Ail Research Inc. · 2011
- Method for equalizing differential heat expansions produced upon operation of a heat exchanger and heat exchanger embodying said method35US 3,939,908 ASociete Anonyme des Usines Chausson · 1976
- Cooling system for internal combustion engines32US 4,202,296 ASuddeutsche Kuhlerfabrik Julius Fr. Behr GmbH & Co. KG · 1980
- Aluminum header construction30US 6,161,614 AKarmazin Products Corporation · 2000