- 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: 4087
10-year publication summary
|
482
|
481
|
377
|
355
|
201
|
204
|
212
|
188
|
161
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9624 |
896 |
| General Electric Company | 13801 |
412 |
| Safran Aircraft Engines | 6428 |
398 |
| GE Infrastructure Technology, LLC | 6199 |
229 |
| Pratt & Whitney Canada Corp. | 4969 |
168 |
| Rolls-Royce PLC | 3165 |
143 |
| Rolls-Royce Corporation | 1707 |
127 |
| Siemens AG | 24303 |
119 |
| MTU Aero Engines AG | 704 |
110 |
| Rolls-Royce North American Technologies, Inc. | 1153 |
102 |
| Mitsubishi Heavy Industries, Ltd. | 8919 |
84 |
| Mitsubishi Power, Ltd. | 1810 |
68 |
| Siemens Energy Global GmbH & Co. KG | 3098 |
57 |
| SNECMA S.A. | 1148 |
52 |
| Honeywell International Inc. | 13547 |
49 |
| Safran Aero Boosters SA | 184 |
47 |
| Snecma | 1061 |
46 |
| IHI Corporation | 3468 |
42 |
| Siemens Energy, Inc. | 1702 |
41 |
| Rolls-Royce Deutschland Ltd & Co KG | 830 |
36 |
| Other owners | 861 |