F01D 25/14
Casings modified therefor
Official title: Casings modified therefor (double casings F01D25/26)
F01D25/14 (Casings modified therefor) appears on 892 US grants and 962 published applications in this corpus.
Search patents in F01D- Granted patents
- 892
- Published applications
- 962
- Assignees
- 192
- Inventors
- 2,200
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 2 |
| 2002 | 9 | 7 |
| 2003 | 6 | 10 |
| 2004 | 6 | 15 |
| 2005 | 10 | 13 |
| 2006 | 10 | 9 |
| 2007 | 3 | 12 |
| 2008 | 9 | 9 |
| 2009 | 4 | 23 |
| 2010 | 6 | 21 |
| 2011 | 11 | 26 |
| 2012 | 24 | 30 |
| 2013 | 13 | 52 |
| 2014 | 25 | 53 |
| 2015 | 35 | 77 |
| 2016 | 45 | 88 |
| 2017 | 61 | 72 |
| 2018 | 71 | 79 |
| 2019 | 82 | 73 |
| 2020 | 91 | 74 |
| 2021 | 80 | 63 |
| 2022 | 66 | 43 |
| 2023 | 53 | 34 |
| 2024 | 43 | 26 |
| 2025 | 24 | 31 |
| 2026 | 23 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Turbine exhaust duct having shielding conduits29 Sep 2026US 12,747,701 B1Pratt & Whitney Canada Corp.
- Cooling fluid guide for gas turbine and gas turbine1 Sep 2026US 12,723,522 B2Mitsubishi Heavy Industries, Ltd.
- Turbine shroud assembly with carrier cooling holes for carrier aft flange18 Aug 2026US 12,709,993 B1ROLLS-ROYCE plc
- Gas turbine engines and methods associated therewith28 Jul 2026US 12,692,792 B2General Electric Company
- High efficiency power production methods, assemblies, and systems14 Jul 2026US 12,680,454 B28 Rivers Capital, LLC
- High efficiency power production methods, assemblies, and systems1 Oct 2026US 2026/0298097 A18 Rivers Capital, LLC
- Gas turbine for controlling thermal expansion of vane carrier10 Sep 2026US 2026/0266198 A1Doosan Enerbility Co., Ltd.
- Active tip clearance control system for aircraft engine27 Aug 2026US 2026/0251072 A1Pratt & Whitney Canada Corp.
- Boss with integral fire protection6 Aug 2026US 2026/0226849 A1Pratt & Whitney Canada Corp.
- Annular wall of aeronautical turbine engine and aeronautical turbine engine comprising such a wall23 Jul 2026US 2026/0210271 A1Safran Aircraft Engines
Most cited
By later US patents
- Shroud cooling segment and assembly69US 6,354,795 B1General Electric Company · 2002
- Rotor seal segment69US 8,246,299 B2ROLLS-ROYCE plc · 2012
- Gas turbine combustor transition duct forced convection cooling65US 4,903,477 AWestinghouse Electric Corp. · 1990
- Casing distortion control for rotating machinery62US 5,605,438 AGeneral Electric Company · 1997
- Isolated turbine shroud61US 5,562,408 AGeneral Electric Company · 1996