F01D 9/045
For radial flow machines or engines
Official title: {for radial flow machines or engines}
F01D9/045 (For radial flow machines or engines) appears on 141 US grants and 143 published applications in this corpus.
Search patents in F01D- Granted patents
- 141
- Published applications
- 143
- Assignees
- 75
- Inventors
- 385
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 3 | 2 |
| 2004 | 1 | 0 |
| 2005 | 2 | 4 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 2 | 4 |
| 2011 | 4 | 5 |
| 2012 | 4 | 3 |
| 2013 | 0 | 5 |
| 2014 | 2 | 16 |
| 2015 | 7 | 3 |
| 2016 | 4 | 12 |
| 2017 | 7 | 11 |
| 2018 | 15 | 10 |
| 2019 | 9 | 15 |
| 2020 | 14 | 9 |
| 2021 | 8 | 9 |
| 2022 | 8 | 6 |
| 2023 | 9 | 10 |
| 2024 | 9 | 4 |
| 2025 | 8 | 4 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Nozzle ring for a radial turbine, exhaust turbine, and turbocharger17 Feb 2026US 12,553,355 B2Accelleron Switzerland Ltd.
- Diffusers, gas turbine engines comprising the same, and methods for operation thereof23 Dec 2025US 12,504,024 B1Honeywell International Inc.
- Aircraft engine including diffuser secured to a bearing housing11 Nov 2025US 12,467,473 B1Pratt & Whitney Canada Corp.
- Electrically driven secondary air pump including compressor having vaned diffuser ring embedded in volute2 Sep 2025US 12,404,870 B2Garrett Transportation I Inc.
- Fuel cell fluid machine24 Jun 2025US 12,338,750 B2Kabushiki Kaisha Toyota Jidoshokki
- Turbine and turbocharger13 Aug 2026US 2026/0235040 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Turbine13 Aug 2026US 2026/0235048 A1Cummins Inc.
- Twin scroll turbine housing23 Jul 2026US 2026/0210272 A1Garrett Motion Technology (Shanghai) Co, Ltd.
- Turbocharger23 Jul 2026US 2026/0210287 A1IHI Corporation
- Turbocompressor unit for an aircraft propulsion system14 May 2026US 2026/0132725 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Turbine cooling air from a centrifugal compressor61US 8,087,249 B2General Electric Company · 2012
- Discrete passage diffuser50US 6,589,015 B1Pratt & Whitney Canada Corp. · 2003
- Radial turbine nozzle vane47US 5,299,909 APraxair Technology, Inc. · 1994
- Exhaust-gas turbine of a turbocharger37US 5,964,574 AAsea Brown Boveri AG · 1999
- Diffuser for a centrifugal compressor36US 6,540,481 B2General Electric Company · 2003