- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 25/08 - CoolingHeatingHeat insulation
Patent holdings for IPC class F01D 25/08
Total number of patents in this class: 336
10-year publication summary
|
35
|
25
|
29
|
15
|
13
|
7
|
15
|
17
|
5
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10082 |
80 |
| GE Infrastructure Technology, LLC | 6171 |
28 |
| General Electric Company | 13888 |
24 |
| United Technologies Corporation | 2220 |
20 |
| Safran Aircraft Engines | 6671 |
15 |
| Rolls-Royce Corporation | 1676 |
13 |
| Pratt & Whitney Canada Corp. | 5472 |
10 |
| Rolls-Royce PLC | 3219 |
10 |
| BorgWarner Inc. | 2581 |
9 |
| Rolls-Royce North American Technologies, Inc. | 1127 |
9 |
| Siemens AG | 24033 |
7 |
| Siemens Energy, Inc. | 1685 |
6 |
| IHI Corporation | 3532 |
5 |
| Siemens Energy Global GmbH & Co. KG | 3335 |
5 |
| SNECMA S.A. | 1146 |
4 |
| Mitsubishi Heavy Industries, Ltd. | 9115 |
4 |
| Safran Helicopter Engines | 840 |
4 |
| JPMorgan Chase Bank, National Association | 8949 |
3 |
| Centre National de La Recherche Scientifique | 11016 |
2 |
| Ansaldo Energia Switzerland AG | 270 |
2 |
| Other owners | 76 |