F01D 25/24
Casings
Official title: Casings (modified for heating or cooling F01D25/14); Casing parts, e.g. diaphragms, casing fastenings (casings for rotary machines or engines in general F16M {; special arrangements in stators dealing with breaking-off of part of rotor F01D21/045})
F01D25/24 (Casings) appears on 5,062 US grants and 5,393 published applications in this corpus.
Search patents in F01D- Granted patents
- 5,062
- Published applications
- 5,393
- Assignees
- 518
- Inventors
- 8,268
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 14 | 0 |
| 1981 | 10 | 0 |
| 1982 | 2 | 0 |
| 1983 | 9 | 0 |
| 1984 | 5 | 0 |
| 1985 | 19 | 0 |
| 1986 | 12 | 0 |
| 1987 | 19 | 0 |
| 1988 | 11 | 0 |
| 1989 | 16 | 0 |
| 1990 | 11 | 0 |
| 1991 | 16 | 0 |
| 1992 | 34 | 0 |
| 1993 | 27 | 0 |
| 1994 | 16 | 0 |
| 1995 | 20 | 0 |
| 1996 | 14 | 0 |
| 1997 | 21 | 0 |
| 1998 | 20 | 0 |
| 1999 | 14 | 0 |
| 2000 | 21 | 0 |
| 2001 | 44 | 6 |
| 2002 | 43 | 16 |
| 2003 | 35 | 40 |
| 2004 | 32 | 50 |
| 2005 | 35 | 59 |
| 2006 | 35 | 64 |
| 2007 | 36 | 69 |
| 2008 | 39 | 77 |
| 2009 | 29 | 84 |
| 2010 | 58 | 110 |
| 2011 | 63 | 136 |
| 2012 | 108 | 159 |
| 2013 | 83 | 240 |
| 2014 | 136 | 254 |
| 2015 | 166 | 382 |
| 2016 | 177 | 641 |
| 2017 | 293 | 474 |
| 2018 | 440 | 429 |
| 2019 | 613 | 372 |
| 2020 | 512 | 435 |
| 2021 | 451 | 307 |
| 2022 | 377 | 230 |
| 2023 | 289 | 231 |
| 2024 | 245 | 182 |
| 2025 | 241 | 174 |
| 2026 | 124 | 172 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Stator device for disposition within a given turbine casing of a turbomachine, connection system for a turbmachine, and turbomachine6 Oct 2026US 12,753,702 B2MTU Aero Engines AG
- Motorized compressor device with air bearing having reduced axial and radial stack-up6 Oct 2026US 12,753,707 B2Garrett Transportation I Inc.
- Clearance control system for blade outer air seal29 Sep 2026US 12,747,673 B2Rtx Corporation
- Joint arrangement for impeller containment22 Sep 2026US 12,742,400 B2Pratt & Whitney Canada Corp.
- Turbine exhaust duct for aircraft engine22 Sep 2026US 12,742,401 B2Pratt & Whitney Canada Corp.
- Ceramic matrix composite seal repair8 Oct 2026US 2026/0309044 A1Rtx Corporation
- Turbine engine rotor shroud8 Oct 2026US 2026/0309053 A1Rtx Corporation
- Split impeller shroud8 Oct 2026US 2026/0309054 A1Pratt & Whitney Canada Corp.
- Entryway system including a divided volute turbocharger8 Oct 2026US 2026/0309073 A1BorgWarner Inc.
- Abrasive flow machining process for a meridionally divided turbine housing, and a masking fixture used in said process1 Oct 2026US 2026/0295774 A1Garrett Transportation I Inc.
Most cited
By later US patents
- Aircraft engine with inter-turbine engine frame supported counter rotating low pressure turbine rotors329US 6,619,030 B1General Electric Company · 2003
- Turbine frame having spindle mounted liner254US 5,634,767 AGeneral Electric Company · 1997
- Gas turbine power generation system145US 6,962,057 B2Honda Giken Kogyo Kaisha · 2005
- Mid turbine frame for gas turbine engine136US 8,091,371 B2Pratt & Whitney Canada Corp. · 2012
- Low-pressure turbine shroud124US 5,188,507 AGeneral Electric Company · 1993