- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 9/02 - NozzlesNozzle boxesStator bladesGuide conduits
Patent holdings for IPC class F01D 9/02
Total number of patents in this class: 2709
10-year publication summary
|
390
|
438
|
320
|
209
|
218
|
132
|
120
|
94
|
88
|
35
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9325 |
385 |
| GE Infrastructure Technology, LLC | 6209 |
203 |
| General Electric Company | 13829 |
200 |
| Pratt & Whitney Canada Corp. | 4700 |
195 |
| Mitsubishi Heavy Industries, Ltd. | 8685 |
138 |
| Mitsubishi Power, Ltd. | 1760 |
105 |
| IHI Corporation | 3414 |
100 |
| Siemens AG | 24525 |
93 |
| United Technologies Corporation | 2247 |
93 |
| Safran Aircraft Engines | 6265 |
93 |
| Siemens Energy, Inc. | 1691 |
87 |
| Mitsubishi Hitachi Power Systems, Ltd. | 993 |
57 |
| SNECMA S.A. | 1145 |
50 |
| Rolls-Royce PLC | 3073 |
43 |
| Rolls-Royce Corporation | 1727 |
42 |
| Rolls-Royce North American Technologies, Inc. | 1161 |
42 |
| Siemens Energy Global GmbH & Co. KG | 2937 |
42 |
| Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | 771 |
35 |
| BorgWarner Inc. | 2602 |
29 |
| Doosan Heavy Industries & Construction Co., Ltd. | 581 |
28 |
| Other owners | 649 |