- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 25/10 - Heating, e.g. warming-up before starting
Patent holdings for IPC class F01D 25/10
Total number of patents in this class: 213
10-year publication summary
|
26
|
30
|
11
|
13
|
9
|
9
|
16
|
10
|
13
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10182 |
17 |
| General Electric Company | 13982 |
15 |
| Siemens AG | 23956 |
15 |
| GE Infrastructure Technology, LLC | 6155 |
15 |
| Mitsubishi Heavy Industries, Ltd. | 9204 |
14 |
| Rolls-Royce PLC | 3224 |
10 |
| Mitsubishi Power, Ltd. | 1836 |
9 |
| Safran Aircraft Engines | 6767 |
8 |
| Pratt & Whitney Canada Corp. | 5531 |
6 |
| Siemens Energy, Inc. | 1680 |
6 |
| Mitsubishi Hitachi Power Systems, Ltd. | 991 |
6 |
| Safran Helicopter Engines | 853 |
5 |
| Turbomeca | 199 |
4 |
| United Technologies Corporation | 2215 |
3 |
| General Electric Technology GmbH | 1322 |
3 |
| Rolls-Royce Corporation | 1681 |
3 |
| Nuovo Pignone Tecnologie S.r.l. | 1229 |
3 |
| Siemens Energy Global GmbH & Co. KG | 3470 |
3 |
| Airbus Operations S.L. | 559 |
2 |
| Hamilton Sundstrand Corporation | 5011 |
2 |
| Other owners | 64 |