- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 25/00 - Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
Patent holdings for IPC class F01D 25/00
Total number of patents in this class: 2521
10-year publication summary
|
281
|
271
|
206
|
162
|
133
|
106
|
97
|
87
|
122
|
72
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 13888 |
268 |
| Rtx Corporation | 10082 |
237 |
| Mitsubishi Heavy Industries, Ltd. | 9115 |
204 |
| Mitsubishi Hitachi Power Systems, Ltd. | 991 |
159 |
| GE Infrastructure Technology, LLC | 6171 |
123 |
| Mitsubishi Power, Ltd. | 1832 |
115 |
| Pratt & Whitney Canada Corp. | 5472 |
91 |
| Safran Aircraft Engines | 6671 |
91 |
| Rolls-Royce Corporation | 1676 |
90 |
| IHI Corporation | 3532 |
89 |
| United Technologies Corporation | 2220 |
81 |
| Rolls-Royce PLC | 3219 |
53 |
| Siemens AG | 24033 |
44 |
| Rolls-Royce North American Technologies, Inc. | 1127 |
44 |
| Mitsubishi Heavy Industries Compressor Corporation | 640 |
31 |
| Lufthansa Technik AG | 498 |
25 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3245 |
23 |
| EcoServices, LLC | 45 |
22 |
| Mitsubishi Heavy Industries Aero Engines, Ltd. | 139 |
22 |
| Siemens Energy, Inc. | 1685 |
21 |
| Other owners | 688 |