- All sections
- B - Performing operations; transporting
- B64C - Aeroplanes; helicopters
- B64C 27/26 - Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft characterised by provision of fixed wings
Patent holdings for IPC class B64C 27/26
Total number of patents in this class: 405
10-year publication summary
|
22
|
17
|
50
|
60
|
56
|
49
|
72
|
49
|
41
|
14
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Textron Innovations Inc. | 2138 |
42 |
| Airbus Helicopters | 984 |
29 |
| Bell Helicopter Textron Inc. | 1122 |
22 |
| Hood Technology Corporation | 53 |
21 |
| Amazon Technologies, Inc. | 24422 |
17 |
| Skyworks Global Inc | 42 |
15 |
| AeroVironment, Inc. | 499 |
10 |
| Kitty Hawk Corporation | 279 |
10 |
| Airbus Helicopters Deutschland GmbH | 324 |
9 |
| Denso Corporation | 23338 |
8 |
| Wing Aviation LLC | 390 |
7 |
| The Boeing Company | 19843 |
6 |
| Joby Aero, Inc. | 200 |
6 |
| Endurant Systems, LLC | 6 |
5 |
| Subaru Corporation | 2959 |
5 |
| Bell Textron Inc. | 86 |
5 |
| Wisk Aero LLC | 173 |
5 |
| Japan Aerospace Exploration Agency | 431 |
4 |
| SZ DJI Technology Co., Ltd | 6791 |
4 |
| Pterodynamics Inc | 6 |
4 |
| Other owners | 171 |