F01D 11/025
Seal clearance control
Official title: {Seal clearance control; Floating assembly; Adaptation means to differential thermal dilatations}
F01D11/025 (Seal clearance control) appears on 428 US grants and 406 published applications in this corpus.
Search patents in F01D- Granted patents
- 428
- Published applications
- 406
- Assignees
- 99
- Inventors
- 747
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 0 | 0 |
| 2000 | 8 | 0 |
| 2001 | 5 | 1 |
| 2002 | 1 | 2 |
| 2003 | 6 | 5 |
| 2004 | 9 | 10 |
| 2005 | 7 | 11 |
| 2006 | 6 | 7 |
| 2007 | 5 | 4 |
| 2008 | 3 | 9 |
| 2009 | 7 | 8 |
| 2010 | 2 | 9 |
| 2011 | 11 | 9 |
| 2012 | 16 | 12 |
| 2013 | 5 | 19 |
| 2014 | 8 | 17 |
| 2015 | 13 | 15 |
| 2016 | 15 | 26 |
| 2017 | 18 | 22 |
| 2018 | 25 | 38 |
| 2019 | 35 | 34 |
| 2020 | 36 | 42 |
| 2021 | 46 | 19 |
| 2022 | 24 | 17 |
| 2023 | 16 | 15 |
| 2024 | 21 | 23 |
| 2025 | 25 | 18 |
| 2026 | 6 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aspirating face seal assembly for a rotary machine11 Aug 2026US 12,704,074 B2General Electric Company
- Turbine with a shroud ring around rotor blades and method of limiting leakage of working fluid in a turbine7 Jul 2026US 12,674,399 B2Nuovo Pignone Tecnologie Srl
- Seal device, rotating machine, and method for mounting seal device16 Jun 2026US 12,655,909 B2Mitsubishi Heavy Industries, Ltd.
- Floating seal assembly for a turbine engine26 May 2026US 12,637,955 B2General Electric Company
- Seal assembly for a rotary machine12 May 2026US 12,624,644 B2General Electric Company
- Hydrostatic annular seal10 Sep 2026US 2026/0266188 A1Safran Aircraft Engines
- Stator assembly for an aircraft turbine engine10 Sep 2026US 2026/0266190 A1Safran Aircraft Engines
- Floating seal assembly for a turbine engine10 Sep 2026US 2026/0266191 A1General Electric Company
- Ceramic matrix composite seal repair30 Jul 2026US 2026/0218618 A1Rtx Corporation
- Aspirating face seal assembly for a rotary machine23 Jul 2026US 2026/0210258 A1General Electric Company
Most cited
By later US patents
- Stator vane asssembly for an axial flow rotary machine86US 4,897,021 AUnited Technologies Corporation · 1990
- Noncontacting finger seal with hydrodynamic foot portion84US 5,755,445 AAlliedSignal Inc. · 1998
- Woven seal and hybrid cloth-brush seals for turbine applications79US 5,474,306 AGeneral Electric Company · 1995
- Combined brush seal and labyrinth seal segment for rotary machines69US 5,749,584 AGeneral Electric Company · 1998
- Brush seal and damper68US 5,114,159 AUnited Technologies Corporation · 1992