F01D 17/14
Varying effective cross-sectional area of nozzles or guide conduits
Official title: varying effective cross-sectional area of nozzles or guide conduits
F01D17/14 (Varying effective cross-sectional area of nozzles or guide conduits) appears on 2,715 US grants and 2,649 published applications in this corpus.
Search patents in F01D- Granted patents
- 2,715
- Published applications
- 2,649
- Assignees
- 441
- Inventors
- 4,345
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 15 | 0 |
| 1978 | 11 | 0 |
| 1979 | 10 | 0 |
| 1980 | 13 | 0 |
| 1981 | 17 | 0 |
| 1982 | 6 | 0 |
| 1983 | 21 | 0 |
| 1984 | 7 | 0 |
| 1985 | 28 | 0 |
| 1986 | 17 | 0 |
| 1987 | 29 | 0 |
| 1988 | 29 | 0 |
| 1989 | 31 | 0 |
| 1990 | 18 | 0 |
| 1991 | 18 | 0 |
| 1992 | 13 | 0 |
| 1993 | 17 | 0 |
| 1994 | 14 | 0 |
| 1995 | 9 | 0 |
| 1996 | 11 | 0 |
| 1997 | 14 | 0 |
| 1998 | 12 | 0 |
| 1999 | 20 | 0 |
| 2000 | 27 | 0 |
| 2001 | 22 | 7 |
| 2002 | 31 | 28 |
| 2003 | 27 | 43 |
| 2004 | 45 | 53 |
| 2005 | 34 | 70 |
| 2006 | 51 | 60 |
| 2007 | 37 | 53 |
| 2008 | 36 | 69 |
| 2009 | 36 | 111 |
| 2010 | 47 | 109 |
| 2011 | 54 | 111 |
| 2012 | 108 | 93 |
| 2013 | 80 | 124 |
| 2014 | 97 | 134 |
| 2015 | 82 | 141 |
| 2016 | 93 | 187 |
| 2017 | 137 | 177 |
| 2018 | 166 | 208 |
| 2019 | 221 | 171 |
| 2020 | 224 | 179 |
| 2021 | 146 | 107 |
| 2022 | 143 | 93 |
| 2023 | 111 | 104 |
| 2024 | 122 | 87 |
| 2025 | 97 | 71 |
| 2026 | 43 | 59 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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Most cited
By later US patents
- Variable geometry guide vane for a gas turbine engine199US 7,632,064 B2United Technologies Corporation · 2009
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- Gas turbine and a method for controlling a gas turbine120US 7,404,294 B2Volvo Aero Corporation · 2008
- Device and method for gas turbine unlocking112US 9,845,730 B2Nuovo Pignone S.p.A. · 2017
- Power conversion systems108US 7,325,401 B1Brayton Energy, LLC · 2008