F01D 5/32
Locking
Official title: Locking, e.g. by final locking blades or keys
F01D5/32 (Locking) appears on 490 US grants and 455 published applications in this corpus.
Search patents in F01D- Granted patents
- 490
- Published applications
- 455
- Assignees
- 109
- Inventors
- 1,034
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 15 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 5 |
| 2002 | 12 | 7 |
| 2003 | 8 | 4 |
| 2004 | 4 | 13 |
| 2005 | 7 | 8 |
| 2006 | 8 | 11 |
| 2007 | 10 | 6 |
| 2008 | 7 | 14 |
| 2009 | 3 | 13 |
| 2010 | 2 | 11 |
| 2011 | 4 | 28 |
| 2012 | 19 | 28 |
| 2013 | 15 | 26 |
| 2014 | 32 | 31 |
| 2015 | 23 | 41 |
| 2016 | 26 | 33 |
| 2017 | 29 | 28 |
| 2018 | 29 | 34 |
| 2019 | 33 | 15 |
| 2020 | 30 | 20 |
| 2021 | 19 | 14 |
| 2022 | 17 | 14 |
| 2023 | 12 | 11 |
| 2024 | 20 | 22 |
| 2025 | 16 | 11 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Device for axially retaining moving blades of an LP turbine in the slots of a rotor disc of the LP turbine and method for assembling said moving blades6 Oct 2026US 12,753,701 B2Safran Aircraft Engines
- Propulsor fan and drive system23 Jun 2026US 12,662,943 B2Whisper Aero Inc.
- Radial turbine assembly with ceramic matrix composite airfoils having circumferential dovetail retention16 Jun 2026US 12,655,770 B2Rolls-Royce North American Technologies Inc.
- Method and apparatus for impeller retention during assembly of a turbine engine16 Jun 2026US 12,655,776 B1Pratt & Whitney Canada Corp.
- Systems and methods for servicing a turbomachine19 May 2026US 12,631,118 B2GE Vernova Infrastructure Technology LLC
- Rotor assembly with independent platforms and method for assembling such a rotor20 Aug 2026US 2026/0243168 A1
- Sealing metal sheet, turbine, bending tool, and method23 Jul 2026US 2026/0210259 A1Siemens Energy Global GmbH & Co. KG
- Shape memory alloy under-root fan blade spacer16 Jul 2026US 2026/0201805 A1Rtx Corporation
- Gas turbine28 May 2026US 2026/0146540 A1Doosan Enerbility Co., Ltd.
- Systems and methods for servicing a turbomachine2 Apr 2026US 2026/0092531 A1GE Infrastructure Technology LLC
Most cited
By later US patents
- Apparatus for preloading an airfoil blade in a gas turbine engine83US 5,123,813 AGeneral Electric Company · 1992
- Dovetail sealing device for axial dovetail rotor blades66US 5,257,909 AGeneral Electric Company · 1993
- Turbomachinery blade retaining assembly63US 4,265,595 AGeneral Electric Company · 1981
- Mounting of integral platform turbine blades with skewed side entry roots56US 4,904,160 AWestinghouse Electric Corp. · 1990
- Non-integral fan platform56US 6,447,250 B1General Electric Company · 2002