F04D 29/322
Blade mountings
Official title: {Blade mountings}
F04D29/322 (Blade mountings) appears on 420 US grants and 446 published applications in this corpus.
Search patents in F04D- Granted patents
- 420
- Published applications
- 446
- Assignees
- 100
- Inventors
- 829
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 4 |
| 2004 | 3 | 5 |
| 2005 | 4 | 7 |
| 2006 | 6 | 5 |
| 2007 | 4 | 3 |
| 2008 | 3 | 11 |
| 2009 | 4 | 18 |
| 2010 | 5 | 8 |
| 2011 | 6 | 14 |
| 2012 | 14 | 16 |
| 2013 | 11 | 12 |
| 2014 | 13 | 19 |
| 2015 | 11 | 17 |
| 2016 | 13 | 42 |
| 2017 | 26 | 42 |
| 2018 | 22 | 35 |
| 2019 | 49 | 26 |
| 2020 | 38 | 32 |
| 2021 | 32 | 24 |
| 2022 | 33 | 19 |
| 2023 | 21 | 21 |
| 2024 | 28 | 29 |
| 2025 | 25 | 13 |
| 2026 | 7 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rotor disk, turbine blade, and turbine blade assembly equipped with these1 Sep 2026US 12,723,516 B2Mitsubishi Heavy Industries, Ltd.
- Axial compressor integrated bladed rotor airfoil design scheme18 Aug 2026US 12,709,986 B1Pratt & Whitney Canada Corp.
- Rotatable trunnions for variable pitch blades21 Jul 2026US 12,687,116 B1General Electric Company
- Variable pitch fan of a gas turbine engine14 Apr 2026US 12,601,271 B2General Electric Company
- Pitch change mechanism with an actuator surrounding a fluid transfer bearing14 Apr 2026US 12,601,272 B2Safran Aircraft Engines
- Turbofan engine including a fan actuation system10 Sep 2026US 2026/0266307 A1General Electric Company
- Turbofan engine including a fan actuation system27 Aug 2026US 2026/0251152 A1General Electric Company
- Asynchronous airfoil pitch adjustment for aircraft propulsion system6 Aug 2026US 2026/0226837 A1Rtx Corporation
- Rotor and vacuum pump6 Aug 2026US 2026/0226915 A1Leybold Aktiengesellschaft
- Aircraft turbine engine having means for detecting the axial displacement of a fan16 Jul 2026US 2026/0201813 A1Safran Aircraft Engines
Most cited
By later US patents
- Cooling system for a gas turbine engine compressor89US 5,297,386 ASociete Nationale d'Etude et de Construction de Moteurs D'Aviation "S.N.E.C.M A." · 1994
- Electromechanical apparatus for varying blade of variable-pitch fan blades83US 5,281,094 AAlliedSignal Inc. · 1994
- Impact absorbing blade mounts for variable pitch blades46US 4,047,840 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1977
- Method and apparatus for replacing a vane assembly in a turbine engine44US 5,690,469 AUnited Technologies Corporation · 1997
- Bladed disk assembly43US 5,259,728 AGeneral Electric Company · 1993