- 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: 4176
10-year publication summary
|
504
|
501
|
396
|
372
|
206
|
213
|
225
|
191
|
172
|
101
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10102 |
911 |
| General Electric Company | 13899 |
428 |
| Safran Aircraft Engines | 6694 |
415 |
| GE Infrastructure Technology, LLC | 6171 |
230 |
| Pratt & Whitney Canada Corp. | 5479 |
181 |
| Rolls-Royce PLC | 3221 |
144 |
| Rolls-Royce Corporation | 1677 |
125 |
| Siemens AG | 24029 |
115 |
| MTU Aero Engines AG | 728 |
113 |
| Rolls-Royce North American Technologies, Inc. | 1129 |
101 |
| Mitsubishi Heavy Industries, Ltd. | 9128 |
88 |
| Mitsubishi Power, Ltd. | 1833 |
68 |
| Siemens Energy Global GmbH & Co. KG | 3345 |
57 |
| SNECMA S.A. | 1146 |
52 |
| Honeywell International Inc. | 12778 |
49 |
| Safran Aero Boosters SA | 185 |
47 |
| Snecma | 1058 |
46 |
| IHI Corporation | 3535 |
44 |
| Siemens Energy, Inc. | 1685 |
41 |
| Rolls-Royce Deutschland Ltd & Co KG | 858 |
37 |
| Other owners | 884 |