- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 2337
10-year publication summary
|
253
|
281
|
271
|
206
|
162
|
131
|
103
|
96
|
79
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 17801 |
222 |
| Rtx Corporation | 9069 |
214 |
| Mitsubishi Heavy Industries, Ltd. | 8504 |
184 |
| Mitsubishi Hitachi Power Systems, Ltd. | 996 |
159 |
| GE Infrastructure Technology, LLC | 6103 |
115 |
| Mitsubishi Power, Ltd. | 1733 |
100 |
| IHI Corporation | 3354 |
93 |
| Rolls-Royce Corporation | 1718 |
89 |
| United Technologies Corporation | 2259 |
82 |
| Safran Aircraft Engines | 6021 |
81 |
| Pratt & Whitney Canada Corp. | 4428 |
60 |
| Siemens AG | 24575 |
51 |
| Rolls-Royce PLC | 2976 |
49 |
| Rolls-Royce North American Technologies, Inc. | 1131 |
44 |
| Mitsubishi Heavy Industries Compressor Corporation | 620 |
30 |
| Lufthansa Technik AG | 475 |
26 |
| EcoServices, LLC | 49 |
23 |
| Siemens Energy, Inc. | 1737 |
22 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3008 |
22 |
| Mitsubishi Heavy Industries Aero Engines, Ltd. | 125 |
21 |
| Other owners | 650 |