- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 25/24 - CasingsCasing parts, e.g. diaphragms, casing fastenings
Patent holdings for IPC class F01D 25/24
Total number of patents in this class: 4731
10-year publication summary
|
519
|
444
|
323
|
370
|
250
|
206
|
208
|
171
|
204
|
29
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9761 |
824 |
| Safran Aircraft Engines | 6474 |
455 |
| General Electric Company | 13776 |
349 |
| Pratt & Whitney Canada Corp. | 5059 |
231 |
| Rolls-Royce Corporation | 1691 |
170 |
| Rolls-Royce PLC | 3172 |
152 |
| Mitsubishi Heavy Industries, Ltd. | 8961 |
131 |
| GE Infrastructure Technology, LLC | 6202 |
129 |
| BorgWarner Inc. | 2598 |
120 |
| Rolls-Royce North American Technologies, Inc. | 1143 |
114 |
| Siemens AG | 24278 |
112 |
| United Technologies Corporation | 2224 |
95 |
| IHI Corporation | 3497 |
81 |
| Mitsubishi Power, Ltd. | 1814 |
79 |
| MTU Aero Engines AG | 709 |
66 |
| SNECMA S.A. | 1148 |
63 |
| Siemens Energy Global GmbH & Co. KG | 3166 |
60 |
| Snecma | 1061 |
54 |
| Rohr, Inc. | 771 |
50 |
| JPMorgan Chase Bank, National Association | 8619 |
49 |
| Other owners | 1347 |