- 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: 291
10-year publication summary
|
36
|
38
|
17
|
39
|
17
|
14
|
16
|
23
|
22
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Safran Aircraft Engines | 6551 |
39 |
| Rtx Corporation | 9885 |
37 |
| Pratt & Whitney Canada Corp. | 5226 |
23 |
| General Electric Company | 13806 |
21 |
| Rolls-Royce PLC | 3182 |
15 |
| Rohr, Inc. | 773 |
14 |
| Safran Aero Boosters SA | 185 |
13 |
| The Boeing Company | 20094 |
9 |
| Honeywell International Inc. | 12786 |
7 |
| Safran Nacelles | 767 |
7 |
| GE Infrastructure Technology, LLC | 6206 |
7 |
| Safran Aero Boosters | 123 |
7 |
| United Technologies Corporation | 2220 |
6 |
| Rosemount Aerospace Inc. | 784 |
6 |
| Hamilton Sundstrand Corporation | 5018 |
5 |
| Rolls-Royce Corporation | 1679 |
5 |
| Rolls-Royce Deutschland Ltd & Co KG | 843 |
5 |
| Safran Electrical & Power | 743 |
4 |
| Siemens AG | 24199 |
3 |
| President and Fellows of Harvard College | 6044 |
3 |
| Other owners | 55 |