F01D 17/00
Regulating or controlling by varying flow
Official title: Regulating or controlling by varying flow (for reversing F01D1/30; by varying rotor-blade position F01D7/00; specially for starting F01D19/00; shutting-down F01D21/00; regulating or controlling in general G05 {; specially adapted for hand-held tools or the like F01D15/06})
F01D17/00 (Regulating or controlling by varying flow) appears on 4,653 US grants and 4,550 published applications in this corpus.
Search patents in F01D- Granted patents
- 4,653
- Published applications
- 4,550
- Assignees
- 735
- Inventors
- 7,873
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 39 | 0 |
| 1977 | 33 | 0 |
| 1978 | 26 | 0 |
| 1979 | 21 | 0 |
| 1980 | 28 | 0 |
| 1981 | 38 | 0 |
| 1982 | 19 | 0 |
| 1983 | 30 | 0 |
| 1984 | 23 | 0 |
| 1985 | 41 | 0 |
| 1986 | 35 | 0 |
| 1987 | 46 | 0 |
| 1988 | 45 | 0 |
| 1989 | 47 | 0 |
| 1990 | 25 | 0 |
| 1991 | 28 | 0 |
| 1992 | 25 | 0 |
| 1993 | 29 | 0 |
| 1994 | 21 | 0 |
| 1995 | 16 | 0 |
| 1996 | 18 | 0 |
| 1997 | 19 | 0 |
| 1998 | 22 | 0 |
| 1999 | 26 | 0 |
| 2000 | 39 | 0 |
| 2001 | 33 | 12 |
| 2002 | 48 | 44 |
| 2003 | 49 | 65 |
| 2004 | 63 | 77 |
| 2005 | 55 | 98 |
| 2006 | 63 | 91 |
| 2007 | 56 | 90 |
| 2008 | 52 | 101 |
| 2009 | 62 | 155 |
| 2010 | 67 | 164 |
| 2011 | 90 | 163 |
| 2012 | 157 | 164 |
| 2013 | 128 | 225 |
| 2014 | 151 | 219 |
| 2015 | 151 | 286 |
| 2016 | 177 | 348 |
| 2017 | 249 | 300 |
| 2018 | 296 | 364 |
| 2019 | 353 | 301 |
| 2020 | 383 | 323 |
| 2021 | 291 | 223 |
| 2022 | 268 | 173 |
| 2023 | 217 | 176 |
| 2024 | 210 | 154 |
| 2025 | 180 | 135 |
| 2026 | 65 | 99 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Variable bleed valve assemblies8 Oct 2026US 2026/0309077 A1General Electric Company
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- Aero-acoustically dampened bleed valve24 Sep 2026US 2026/0286904 A1General Electric Company
- Aeronautical propulsion unit with improved acoustics17 Sep 2026US 2026/0274398 A1Safran Aircraft Engines
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- Systems and methods for monitoring gas turbine systems having exhaust gas recirculation126US 9,617,914 B2ExxonMobil Upstream Research Company · 2017
- Systems and methods for evaluating component strain123US 9,879,981 B1General Electric Company · 2018