- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 11/34 - Blade pitch-changing mechanisms mechanical automatic
Patent holdings for IPC class B64C 11/34
Total number of patents in this class: 97
10-year publication summary
|
7
|
10
|
11
|
14
|
11
|
6
|
4
|
6
|
7
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kitty Hawk Corporation | 303 |
12 |
| Safran Aircraft Engines | 6704 |
8 |
| General Electric Company | 13910 |
7 |
| Snecma | 1058 |
6 |
| Pratt & Whitney Canada Corp. | 5506 |
4 |
| Hamilton Sundstrand Corporation | 5014 |
4 |
| Bell Helicopter Textron Inc. | 961 |
4 |
| Skydio, Inc. | 522 |
4 |
| SNECMA S.A. | 1146 |
3 |
| PRODRONE Co., Ltd. | 77 |
3 |
| Sikorsky Aircraft Corporation | 1066 |
3 |
| Textron Innovations Inc. | 2443 |
3 |
| Honeywell International Inc. | 12772 |
2 |
| GE Avio S.r.l. | 335 |
2 |
| Max Prop S.r.l. | 24 |
2 |
| Ratier-figeac SAS | 205 |
2 |
| Qingdao Randall Aerodynamic Engineering, LLC | 4 |
2 |
| Rotors, Drones & More | 2 |
2 |
| Airbus Helicopters | 952 |
1 |
| Lockheed Martin Corporation | 3255 |
1 |
| Other owners | 22 |