- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 11/44 - Blade pitch-changing mechanisms electric
Patent holdings for IPC class B64C 11/44
Total number of patents in this class: 128
10-year publication summary
|
5
|
9
|
11
|
18
|
19
|
20
|
12
|
9
|
16
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Safran Aircraft Engines | 6079 |
24 |
| Pratt & Whitney Canada Corp. | 4453 |
8 |
| Hamilton Sundstrand Corporation | 4751 |
8 |
| GE Avio S.r.l. | 247 |
6 |
| Hispano Suiza | 77 |
4 |
| Ratier-figeac SAS | 184 |
4 |
| Zunum Aero, Inc. | 18 |
4 |
| The Boeing Company | 19930 |
3 |
| Sikorsky Aircraft Corporation | 1120 |
3 |
| Textron Innovations Inc. | 2205 |
3 |
| General Electric Company | 17807 |
2 |
| Honeywell International Inc. | 14031 |
2 |
| Rolls-Royce PLC | 3000 |
2 |
| Alluvionic Inc. | 8 |
2 |
| Ampaire, Inc. | 55 |
2 |
| Embraer S.A. | 389 |
2 |
| GE Aviation Systems Limited | 261 |
2 |
| Kitty Hawk Corporation | 289 |
2 |
| Moog Inc. | 423 |
2 |
| Rolls-Royce Deutschland Ltd & Co KG | 800 |
2 |
| Other owners | 41 |