F01D 9/026
Scrolls for radial machines or engines
Official title: {Scrolls for radial machines or engines}
F01D9/026 (Scrolls for radial machines or engines) appears on 413 US grants and 441 published applications in this corpus.
Search patents in F01D- Granted patents
- 413
- Published applications
- 441
- Assignees
- 146
- Inventors
- 889
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 3 |
| 2003 | 3 | 7 |
| 2004 | 5 | 7 |
| 2005 | 8 | 9 |
| 2006 | 8 | 7 |
| 2007 | 3 | 9 |
| 2008 | 6 | 4 |
| 2009 | 2 | 14 |
| 2010 | 6 | 14 |
| 2011 | 6 | 18 |
| 2012 | 10 | 21 |
| 2013 | 15 | 32 |
| 2014 | 15 | 29 |
| 2015 | 19 | 31 |
| 2016 | 21 | 22 |
| 2017 | 25 | 21 |
| 2018 | 23 | 29 |
| 2019 | 32 | 26 |
| 2020 | 31 | 41 |
| 2021 | 30 | 22 |
| 2022 | 29 | 14 |
| 2023 | 20 | 19 |
| 2024 | 17 | 17 |
| 2025 | 21 | 7 |
| 2026 | 11 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Joint arrangement for impeller containment22 Sep 2026US 12,742,400 B2Pratt & Whitney Canada Corp.
- Turbine housing, turbine, and turbocharger25 Aug 2026US 12,716,369 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Abrasive flow machining process for a meridionally divided turbine housing, and a masking fixture used in said process11 Aug 2026US 12,703,064 B2Garrett Transportation I Inc.
- Turbine housing and variable geometry turbocharger11 Aug 2026US 12,704,079 B2Mitsubishi Heavy Industries, Ltd.
- Hot gas intake scroll case assembly for aircraft engine11 Aug 2026US 12,704,080 B1Pratt & 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.
- Double scroll turbine and turbocharger20 Aug 2026US 2026/0243171 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Turbine13 Aug 2026US 2026/0235048 A1Cummins Inc.
- Aircraft engine having a scroll case with integrated vanes30 Jul 2026US 2026/0218616 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Exhaust turbocharger76US 7,343,742 B2Bayerische Motoren Werke Aktiengesellschaft · 2008
- Integral turbine exhaust gas recirculation control valve75US 6,032,465 AAlliedSignal Inc. · 2000
- Particle separator for a turbine engine61US 6,698,180 B2ROLLS-ROYCE plc · 2004
- Turbine casing for turbochargers60US 4,389,845 AIshikawajima-Harima Jukogyo Kabushiki Kaisha · 1983
- Turbocharger60US 6,073,447 AAisin Seiki Kabushiki Kaisha · 2000