F28F 9/167
The parts being inserted in the heat-exchange conduits
Official title: {the parts being inserted in the heat-exchange conduits}
F28F9/167 (The parts being inserted in the heat-exchange conduits) appears on 32 US grants and 28 published applications in this corpus.
Search patents in F28F- Granted patents
- 32
- Published applications
- 28
- Assignees
- 26
- Inventors
- 86
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 4 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 2 |
| 2020 | 0 | 5 |
| 2021 | 2 | 3 |
| 2022 | 2 | 3 |
| 2023 | 3 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Flow through tube plug24US 7,252,138 B2Rohm and Haas Company · 2007
- Solar heat exchange system23US 4,709,689 AEnvironmental Resources, Inc. · 1987
- Heat exchanger20US 4,739,828 ASueddeutsche Kuehlerfabrik Julius Fr. Behr GmbH & Co. KG · 1988
- Multi-tube heat exchanger and connectors therefor20US 4,832,119 A1989
- Fluid to gas heat exchangers16US 6,918,435 B22005