F28F 9/0282
By varying the geometry of conduit ends
Official title: {by varying the geometry of conduit ends, e.g. by using inserts or attachments for modifying the pattern of flow at the conduit inlet or outlet}
F28F9/0282 (By varying the geometry of conduit ends) appears on 119 US grants and 134 published applications in this corpus.
Search patents in F28F- Granted patents
- 119
- Published applications
- 134
- Assignees
- 95
- Inventors
- 321
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 4 |
| 2007 | 0 | 5 |
| 2008 | 2 | 6 |
| 2009 | 3 | 2 |
| 2010 | 2 | 4 |
| 2011 | 3 | 2 |
| 2012 | 2 | 4 |
| 2013 | 1 | 6 |
| 2014 | 2 | 3 |
| 2015 | 4 | 6 |
| 2016 | 3 | 8 |
| 2017 | 8 | 4 |
| 2018 | 5 | 4 |
| 2019 | 5 | 7 |
| 2020 | 8 | 12 |
| 2021 | 7 | 14 |
| 2022 | 7 | 14 |
| 2023 | 12 | 8 |
| 2024 | 10 | 14 |
| 2025 | 7 | 4 |
| 2026 | 9 | 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
- Closed loop liquid cooling for semiconductor RF amplifier modules213US 5,901,037 ANorthrop Grumman Corporation · 1999
- Tubular heat exchange systems97US 9,200,855 B2Honeywell International Inc. · 2015
- Method of and apparatus for recovery of waste energy33US 4,529,032 AMolitor Industries, Inc. · 1985
- Coiled heat exchanger29US 4,313,491 AMolitor Industries, Inc. · 1982
- Reheating device of steam power plant28US 4,607,689 ATokyo Shibaura Denki Kabushiki Kaisha · 1986