F01D 1/02
Non-positive-displacement machines or engines: with stationary working-fluid guiding means and bladed or
Official title: with stationary working-fluid guiding means and bladed or like rotor, {e.g. multi-bladed impulse steam turbines}(F01D1/24 takes precedence; without stationary working-fluid guiding means F01D1/18)
F01D1/02 (Non-positive-displacement machines or engines: with stationary working-fluid guiding means and bladed or) appears on 474 US grants and 500 published applications in this corpus.
Search patents in F01D- Granted patents
- 474
- Published applications
- 500
- Assignees
- 229
- Inventors
- 1,045
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 0 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 7 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 10 | 1 |
| 2002 | 9 | 7 |
| 2003 | 4 | 12 |
| 2004 | 14 | 16 |
| 2005 | 6 | 10 |
| 2006 | 9 | 10 |
| 2007 | 8 | 8 |
| 2008 | 3 | 4 |
| 2009 | 3 | 14 |
| 2010 | 5 | 23 |
| 2011 | 7 | 14 |
| 2012 | 16 | 23 |
| 2013 | 12 | 43 |
| 2014 | 19 | 34 |
| 2015 | 26 | 62 |
| 2016 | 11 | 35 |
| 2017 | 39 | 23 |
| 2018 | 41 | 37 |
| 2019 | 23 | 25 |
| 2020 | 31 | 28 |
| 2021 | 31 | 24 |
| 2022 | 23 | 16 |
| 2023 | 11 | 7 |
| 2024 | 15 | 9 |
| 2025 | 6 | 9 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F01D 1/06Traversed by the working-fluid substantially radially92
- F01D 1/04Traversed by the working-fluid substantially axially90
- F01D 1/023The working-fluid being divided into several separate flows72
- F01D 1/026Impact turbines with buckets, i.e. impulse turbines57
- F01D 1/12With repeated action on same blade ring47
- F01D 1/16Characterised by having both reaction stages and impulse stages19
- F01D 1/10Having two or more stages subjected to working-fluid flow without essential intermediate16
Recent patents
- Radial turbine assembly with ceramic matrix composite airfoils having circumferential dovetail retention16 Jun 2026US 12,655,770 B2Rolls-Royce North American Technologies Inc.
- Aeronautical propulsion system comprising an optimized fan section21 Apr 2026US 12,607,124 B2Safran Aircraft Engines
- Radial expander14 Apr 2026US 12,601,264 B2Everllence SE
- First stage impulse steam turbine nozzle axially tangential holes matrix10 Mar 2026US 12,571,322 B1Northrop Grumman Systems Corporation
- Insert assembly for a rotary apparatus, related apparatus and method3 Feb 2026US 12,540,549 B2Coolbrook Oy
- Steam turbine23 Jul 2026US 2026/0210251 A1Mitsubishi Heavy Ind. Compressor Corp.
- A steam turbine and a use of the steam turbine, a method of manufacturing or servicing of said steam turbine, a small-modular reactor and a power plant including said steam turbine23 Jul 2026US 2026/0210252 A1General Electric Technology GmbH
- A peripheral expanding chambers in flywheel engine generating and storing energy25 Jun 2026US 2026/0177026 A1
- Turbine engine system7 May 2026US 2026/0125981 A1Heleng Inc.
- Ported compressor with partially swept leading edge for gas turbine engine12 Mar 2026US 2026/0071633 A1Honeywell International Inc.
Most cited
By later US patents
- Hydrogen-rich fuel, closed-loop cooled, and reheat enhanced gas turbine powerplants106US 5,590,518 ACalifornia Energy Commission · 1997
- Two-stage fluid driven turbine72US 4,968,216 AThe Boeing Company · 1990
- Method for setting a gear ratio of a fan drive gear system of a gas turbine engine59US 9,816,443 B2United Technologies Corporation · 2017
- Adiabatic salt electric energy storage52US 9,932,830 B2X Development LLC · 2018
- Multiple mode operated motor with various sized orifice ports50US 5,271,225 A1993