F01D 5/08
Heating, heat-insulating or cooling means
Official title: Heating, heat-insulating or cooling means {(specially adapted for radial flow machines or engines F01D5/04)}
F01D5/08 (Heating, heat-insulating or cooling means) appears on 1,467 US grants and 1,340 published applications in this corpus.
Search patents in F01D- Granted patents
- 1,467
- Published applications
- 1,340
- Assignees
- 181
- Inventors
- 2,561
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 7 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 12 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 11 | 0 |
| 1988 | 10 | 0 |
| 1989 | 15 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 13 | 0 |
| 1993 | 15 | 0 |
| 1994 | 13 | 0 |
| 1995 | 8 | 0 |
| 1996 | 13 | 0 |
| 1997 | 10 | 0 |
| 1998 | 15 | 0 |
| 1999 | 19 | 0 |
| 2000 | 25 | 0 |
| 2001 | 24 | 8 |
| 2002 | 42 | 31 |
| 2003 | 23 | 20 |
| 2004 | 24 | 30 |
| 2005 | 22 | 37 |
| 2006 | 30 | 40 |
| 2007 | 23 | 38 |
| 2008 | 21 | 25 |
| 2009 | 27 | 46 |
| 2010 | 22 | 44 |
| 2011 | 30 | 56 |
| 2012 | 47 | 84 |
| 2013 | 47 | 77 |
| 2014 | 68 | 58 |
| 2015 | 68 | 69 |
| 2016 | 41 | 119 |
| 2017 | 65 | 119 |
| 2018 | 94 | 92 |
| 2019 | 104 | 74 |
| 2020 | 121 | 60 |
| 2021 | 76 | 70 |
| 2022 | 75 | 34 |
| 2023 | 46 | 34 |
| 2024 | 31 | 32 |
| 2025 | 30 | 28 |
| 2026 | 23 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ultra-micro gas turbine generator15 Sep 2026US 12,736,007 B2
- Center tie rotor annular seal11 Aug 2026US 12,704,073 B2Rtx Corporation
- Gas turbine engine with improved high pressure compressor leakage path guide structure4 Aug 2026US 12,698,901 B2Rtx Corporation
- High efficiency power production methods, assemblies, and systems14 Jul 2026US 12,680,454 B28 Rivers Capital, LLC
- Cooling-air injection casing for a turbomachine turbine14 Jul 2026US 12,680,462 B2Safran Aircraft Engines
- A heat shield for a rotor of a turbo engine1 Oct 2026US 2026/0298095 A1Siemens Energy Global GmbH & Co. KG
- High efficiency power production methods, assemblies, and systems1 Oct 2026US 2026/0298097 A18 Rivers Capital, LLC
- Expander and method of manufacturing24 Sep 2026US 2026/0286848 A1Nuovo Pignone Tecnologie Srl
- Expander and thermodynamic cycle using the expander17 Sep 2026US 2026/0275871 A1Nuovo Pignone Tecnologie Srl
- Valve for an aircraft turbine engine2 Jul 2026US 2026/0185626 A1Safran Aircraft Engines
Most cited
By later US patents
- Thermal seal for a gas turbine spacer disc1,527US 5,080,556 AGeneral Electric Company · 1992
- Evaporatively cooled rotor for a gas turbine engine345US 5,857,836 AAerodyne Research, Inc. · 1999
- Compressor rotor cooling system for a gas turbine125US 5,685,158 AGeneral Electric Company · 1997
- Turbocharging system with integral assisting electric motor and cooling system therefor107US 5,605,045 ATurbodyne Systems, Inc. · 1997
- Modulated turbine cooling system104US 6,050,079 AGeneral Electric Company · 2000