F01D 1/30
Non-positive-displacement machines or engines: characterised by having a single rotor operable in
Official title: characterised by having a single rotor operable in either direction of rotation, e.g. by reversing of blades (combinations of machines or engines F01D13/00)
F01D1/30 (Non-positive-displacement machines or engines: characterised by having a single rotor operable in) appears on 22 US grants and 25 published applications in this corpus.
Search patents in F01D- Granted patents
- 22
- Published applications
- 25
- Assignees
- 20
- Inventors
- 59
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 3 |
| 2021 | 0 | 2 |
| 2022 | 0 | 1 |
| 2023 | 1 | 2 |
| 2024 | 2 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rotary assembly1 Sep 2026US 12,723,519 B2ROLLS-ROYCE plc
- Fluid turbines25 Nov 2025US 12,480,520 B2Exergi Incorporated
- Bypass turbomachine for an aircraft6 May 2025US 12,291,978 B2Safran Aircraft Engines
- Blower assembly21 May 2024US 11,988,100 B2ROLLS-ROYCE plc
- Automatic blade pitch control6 Feb 2024US 11,891,919 B2Safran Aircraft Engines
- Gas turbine engine13 Aug 2026US 2026/0235038 A1General Electric Company
- Fluid turbines8 Jan 2026US 2026/0009397 A1Exergi Incorporated
- Ultra-efficient bladeless turbomachinery5 Jun 2025US 2025/0179919 A1
- Fluid turbines28 Nov 2024US 2024/0392798 A1Exergi Incorporated
- Rotary assembly9 May 2024US 2024/0151154 A1ROLLS-ROYCE plc
Most cited
By later US patents
- Method and device for reversing the thrust of very high bypass ratio turbojet engines43US 6,148,605 ASociete Nationale d'Etude et de Construction de Moteurs D'Aviation "S.N.E.C.M A." · 2000
- Pneumatic/mechanical actuator42US 6,401,458 B2Quoin International, Inc. · 2002
- Variable pitch arrangement for a gas turbine engine36US 4,968,217 AROLLS-ROYCE plc · 1990
- Shaft drive alternately for both directions of rotation25US 4,223,770 AMesserschmitt-Bolkow-Blohm GmbH · 1980
- Axial-flow reversible turbine10US 4,124,329 A1978