F04D 29/667
By influencing the flow pattern
Official title: {by influencing the flow pattern, e.g. suppression of turbulence}
F04D29/667 (By influencing the flow pattern) appears on 384 US grants and 444 published applications in this corpus.
Search patents in F04D- Granted patents
- 384
- Published applications
- 444
- Assignees
- 211
- Inventors
- 944
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 11 | 0 |
| 2001 | 4 | 1 |
| 2002 | 3 | 5 |
| 2003 | 5 | 7 |
| 2004 | 5 | 8 |
| 2005 | 11 | 16 |
| 2006 | 4 | 8 |
| 2007 | 3 | 10 |
| 2008 | 5 | 4 |
| 2009 | 3 | 8 |
| 2010 | 10 | 7 |
| 2011 | 5 | 12 |
| 2012 | 6 | 6 |
| 2013 | 3 | 13 |
| 2014 | 8 | 9 |
| 2015 | 8 | 28 |
| 2016 | 5 | 31 |
| 2017 | 19 | 17 |
| 2018 | 22 | 45 |
| 2019 | 36 | 45 |
| 2020 | 39 | 31 |
| 2021 | 31 | 28 |
| 2022 | 41 | 19 |
| 2023 | 25 | 26 |
| 2024 | 25 | 23 |
| 2025 | 17 | 12 |
| 2026 | 9 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Gas passage for use in a pap device6 Aug 2026US 2026/0224831 A1Wallenberg Union LLC
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- Reduction of turbomachinery noise149US 6,004,095 AMassachusetts Institute of Technology · 1999
- Active control of unsteady motion phenomena in turbomachinery82US 5,005,353 AROLLS-ROYCE plc · 1991
- Low noise permeable airfoil71US 6,139,259 AGeneral Electric Company · 2000