- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 25/02 - De-icing means for engines having icing phenomena
Patent holdings for IPC class F01D 25/02
Total number of patents in this class: 274
10-year publication summary
|
36
|
36
|
38
|
17
|
39
|
17
|
14
|
15
|
20
|
17
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Safran Aircraft Engines | 6287 |
36 |
| Rtx Corporation | 9395 |
33 |
| Pratt & Whitney Canada Corp. | 4765 |
23 |
| General Electric Company | 13808 |
20 |
| Rolls-Royce PLC | 3104 |
16 |
| Rohr, Inc. | 748 |
13 |
| Safran Aero Boosters SA | 181 |
13 |
| The Boeing Company | 20057 |
8 |
| GE Infrastructure Technology, LLC | 6228 |
7 |
| Honeywell International Inc. | 13567 |
6 |
| United Technologies Corporation | 2242 |
6 |
| Rolls-Royce Corporation | 1736 |
6 |
| Rosemount Aerospace Inc. | 774 |
6 |
| Hamilton Sundstrand Corporation | 4888 |
5 |
| Rolls-Royce Deutschland Ltd & Co KG | 817 |
5 |
| Safran Nacelles | 715 |
5 |
| Siemens AG | 24461 |
3 |
| President and Fellows of Harvard College | 5973 |
3 |
| Goodrich Corporation | 2129 |
3 |
| Safran Electrical & Power | 685 |
3 |
| Other owners | 54 |