- 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: 4017
10-year publication summary
|
648
|
504
|
501
|
396
|
372
|
205
|
213
|
225
|
185
|
93
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9313 |
879 |
| General Electric Company | 13830 |
398 |
| Safran Aircraft Engines | 6250 |
381 |
| GE Infrastructure Technology, LLC | 6196 |
229 |
| Pratt & Whitney Canada Corp. | 4629 |
160 |
| Rolls-Royce PLC | 3072 |
144 |
| Rolls-Royce Corporation | 1727 |
132 |
| Siemens AG | 24547 |
121 |
| MTU Aero Engines AG | 671 |
107 |
| Rolls-Royce North American Technologies, Inc. | 1162 |
103 |
| Mitsubishi Heavy Industries, Ltd. | 8657 |
82 |
| Mitsubishi Power, Ltd. | 1758 |
67 |
| Siemens Energy Global GmbH & Co. KG | 2923 |
55 |
| SNECMA S.A. | 1145 |
52 |
| Honeywell International Inc. | 13562 |
49 |
| Safran Aero Boosters SA | 182 |
47 |
| Snecma | 1065 |
47 |
| IHI Corporation | 3413 |
42 |
| Siemens Energy, Inc. | 1691 |
40 |
| Rolls-Royce Deutschland Ltd & Co KG | 810 |
36 |
| Other owners | 846 |