F04D 29/56
Adjustable
Official title: adjustable
F04D29/56 (Adjustable) appears on 738 US grants and 782 published applications in this corpus.
Search patents in F04D- Granted patents
- 738
- Published applications
- 782
- Assignees
- 192
- Inventors
- 1,413
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 8 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 6 | 2 |
| 2003 | 4 | 5 |
| 2004 | 6 | 7 |
| 2005 | 2 | 19 |
| 2006 | 12 | 17 |
| 2007 | 14 | 18 |
| 2008 | 5 | 18 |
| 2009 | 11 | 24 |
| 2010 | 18 | 27 |
| 2011 | 15 | 22 |
| 2012 | 20 | 32 |
| 2013 | 20 | 37 |
| 2014 | 24 | 33 |
| 2015 | 18 | 38 |
| 2016 | 26 | 76 |
| 2017 | 26 | 61 |
| 2018 | 55 | 71 |
| 2019 | 88 | 49 |
| 2020 | 70 | 53 |
| 2021 | 52 | 45 |
| 2022 | 42 | 28 |
| 2023 | 41 | 45 |
| 2024 | 41 | 25 |
| 2025 | 25 | 15 |
| 2026 | 9 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Bearing for turbomachine variable pitch stator vane pivot, stator vane comprising such a bearing and turbomachine comprising such stator vanes6 Oct 2026US 12,753,705 B2Safran Aircraft Engines
- Blowing device and blowing device operating method29 Sep 2026US 12,747,738 B2Samsung Electronics Co., Ltd.
- Variable vane system for aircraft powerplant29 Sep 2026US 12,747,739 B1Rtx Corporation
- Cantilever butterfly shutter door closer22 Sep 2026US 12,742,461 B2GSI Group Corporation
- Airflow control apparatus, airflow control system, and airflow control method15 Sep 2026US 12,736,064 B2Sony Group Corporation
- Variable-pitch vane for an unducted aeronautical thruster1 Oct 2026US 2026/0298260 A1Safran Aircraft Engines
- Asynchronous airfoil pitch adjustment for aircraft propulsion system6 Aug 2026US 2026/0226837 A1Rtx Corporation
- Propulsion system with adjustable core inlet guide vane30 Jul 2026US 2026/0218615 A1Rtx Corporation
- Flow path adjustment mechanism and fluid delivery device30 Jul 2026US 2026/0218729 A1Nidec Corporation
- Gas turbine engine with variable compressor inlet23 Jul 2026US 2026/0210266 A1Rtx Corporation
Most cited
By later US patents
- Variable geometry guide vane for a gas turbine engine199US 7,632,064 B2United Technologies Corporation · 2009
- Variable camber and stagger airfoil and method72US 7,114,911 B2General Electric Company · 2006
- Variable pressure and variable air flow turbofan engines68US 5,794,432 ADiversitech Corporation · 1998
- Adjustable spacer57US 4,925,364 AUnited Technologies Corporation · 1990
- Radially constrained variable vane shroud54US 4,834,613 AUnited Technologies Corporation · 1989