F28F 3/14
By separating portions of a pair of joined sheets to form channels
Official title: by separating portions of a pair of joined sheets to form channels, e.g. by inflation (manufacture thereof B23P)
F28F3/14 (By separating portions of a pair of joined sheets to form channels) appears on 163 US grants and 158 published applications in this corpus.
Search patents in F28F- Granted patents
- 163
- Published applications
- 158
- Assignees
- 127
- Inventors
- 431
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 8 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 2 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 1 |
| 2007 | 2 | 3 |
| 2008 | 0 | 4 |
| 2009 | 0 | 3 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 3 |
| 2013 | 1 | 11 |
| 2014 | 3 | 2 |
| 2015 | 1 | 4 |
| 2016 | 1 | 7 |
| 2017 | 4 | 6 |
| 2018 | 2 | 6 |
| 2019 | 7 | 16 |
| 2020 | 7 | 6 |
| 2021 | 12 | 20 |
| 2022 | 12 | 13 |
| 2023 | 15 | 15 |
| 2024 | 10 | 11 |
| 2025 | 10 | 10 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Assembly for dissipating thermal energy contained in an electrical circuit element and associated method therefor71US 5,509,468 AStorage Technology Corporation · 1996
- Integral tube and strip fin heat exchanger circuit69US 5,353,868 A1994
- Internal combustion engine oil pan with oil cooler50US 5,408,965 AFord Motor Company · 1995
- Heat sink for portable electronic devices49US 6,164,368 AShowa Aluminum Corporation · 2000
- Heat exchangers42US 5,287,918 AROLLS-ROYCE plc · 1994