- All sections
- B - Performing operations; transporting
- B64C - Aeroplanes; helicopters
- B64C 27/30 - Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft with provision for reducing drag of inoperative rotor
Patent holdings for IPC class B64C 27/30
Total number of patents in this class: 129
10-year publication summary
|
5
|
12
|
17
|
22
|
28
|
11
|
19
|
12
|
13
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Textron Innovations Inc. | 2138 |
25 |
| Bell Helicopter Textron Inc. | 1122 |
17 |
| Joby Aero, Inc. | 200 |
8 |
| Innostar | 9 |
7 |
| Kitty Hawk Corporation | 279 |
6 |
| Aurora Flight Sciences Corporation | 234 |
5 |
| Wing Aviation LLC | 390 |
4 |
| Lockheed Martin Corporation | 3406 |
3 |
| Amazon Technologies, Inc. | 24422 |
3 |
| Skyworks Global Inc | 42 |
3 |
| BCG Digital Ventures GmbH | 5 |
3 |
| Beta Air, LLC | 539 |
3 |
| The Boeing Company | 19843 |
2 |
| PRODRONE Co., Ltd. | 87 |
2 |
| Sikorsky Aircraft Corporation | 1150 |
2 |
| SkyX Limited | 9 |
2 |
| L3 Technologies, Inc. | 425 |
2 |
| Shanghai Fukun Aviation Technology Co., Ltd. | 2 |
2 |
| Bell Textron Inc. | 86 |
2 |
| Gadfin Ltd. | 9 |
2 |
| Other owners | 26 |