- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 9/02 - Nozzles; Nozzle boxes; Stator blades; Guide conduits
Patent holdings for IPC class F01D 9/02
Total number of patents in this class: 2654
10-year publication summary
|
322
|
390
|
438
|
320
|
208
|
218
|
132
|
113
|
89
|
36
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 8674 |
374 |
| General Electric Company | 18133 |
193 |
| GE Infrastructure Technology, LLC | 5873 |
193 |
| Pratt & Whitney Canada Corp. | 4215 |
184 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
120 |
| IHI Corporation | 3268 |
111 |
| Siemens AG | 24990 |
94 |
| United Technologies Corporation | 2328 |
93 |
| Mitsubishi Power, Ltd. | 1680 |
92 |
| Siemens Energy, Inc. | 1770 |
90 |
| Safran Aircraft Engines | 5739 |
89 |
| Mitsubishi Hitachi Power Systems, Ltd. | 999 |
58 |
| SNECMA S.A. | 1160 |
51 |
| Rolls-Royce PLC | 2944 |
45 |
| Rolls-Royce Corporation | 1686 |
45 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
43 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
39 |
| Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | 699 |
33 |
| BorgWarner Inc. | 2604 |
29 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
28 |
| Other owners | 650 |