- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 9/04 - NozzlesNozzle boxesStator bladesGuide conduits forming ring or sector
Patent holdings for IPC class F01D 9/04
Total number of patents in this class: 4057
10-year publication summary
|
617
|
482
|
481
|
377
|
355
|
201
|
204
|
212
|
187
|
121
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9429 |
889 |
| General Electric Company | 13827 |
404 |
| Safran Aircraft Engines | 6303 |
391 |
| GE Infrastructure Technology, LLC | 6247 |
229 |
| Pratt & Whitney Canada Corp. | 4817 |
163 |
| Rolls-Royce PLC | 3127 |
144 |
| Rolls-Royce Corporation | 1757 |
131 |
| Siemens AG | 24421 |
120 |
| MTU Aero Engines AG | 689 |
107 |
| Rolls-Royce North American Technologies, Inc. | 1169 |
103 |
| Mitsubishi Heavy Industries, Ltd. | 8777 |
83 |
| Mitsubishi Power, Ltd. | 1779 |
68 |
| Siemens Energy Global GmbH & Co. KG | 3007 |
56 |
| SNECMA S.A. | 1148 |
52 |
| Honeywell International Inc. | 13554 |
49 |
| Safran Aero Boosters SA | 183 |
47 |
| Snecma | 1064 |
47 |
| IHI Corporation | 3447 |
42 |
| Siemens Energy, Inc. | 1707 |
40 |
| Rolls-Royce Deutschland Ltd & Co KG | 818 |
36 |
| Other owners | 856 |