F28F 13/08
By varying the cross-section of the flow channels
Official title: by varying the cross-section of the flow channels
F28F13/08 (By varying the cross-section of the flow channels) appears on 397 US grants and 505 published applications in this corpus.
Search patents in F28F- Granted patents
- 397
- Published applications
- 505
- Assignees
- 328
- Inventors
- 1,110
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 6 | 0 |
| 1992 | 9 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 6 |
| 2002 | 3 | 5 |
| 2003 | 4 | 9 |
| 2004 | 9 | 11 |
| 2005 | 11 | 9 |
| 2006 | 7 | 5 |
| 2007 | 4 | 14 |
| 2008 | 6 | 4 |
| 2009 | 4 | 21 |
| 2010 | 4 | 17 |
| 2011 | 5 | 17 |
| 2012 | 8 | 26 |
| 2013 | 14 | 19 |
| 2014 | 8 | 19 |
| 2015 | 15 | 21 |
| 2016 | 18 | 33 |
| 2017 | 19 | 39 |
| 2018 | 18 | 30 |
| 2019 | 27 | 30 |
| 2020 | 33 | 34 |
| 2021 | 27 | 32 |
| 2022 | 23 | 34 |
| 2023 | 26 | 29 |
| 2024 | 19 | 12 |
| 2025 | 25 | 24 |
| 2026 | 8 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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