- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 27/06 - Helicopters with single rotor
Patent holdings for IPC class B64C 27/06
Total number of patents in this class: 207
10-year publication summary
|
16
|
35
|
36
|
23
|
33
|
27
|
26
|
15
|
8
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Textron Innovations Inc. | 2239 |
41 |
| Sikorsky Aircraft Corporation | 1114 |
25 |
| Airbus Helicopters | 964 |
17 |
| Bell Helicopter Textron Inc. | 1058 |
16 |
| Airbus Helicopters Deutschland GmbH | 326 |
13 |
| Lockheed Martin Corporation | 3280 |
8 |
| Safran Helicopter Engines | 741 |
8 |
| ETAK Systems, LLC | 74 |
6 |
| Leonardo S.p.A. | 654 |
5 |
| The Boeing Company | 19953 |
4 |
| Bell Textron Rhode Island Inc. | 83 |
4 |
| Hill Group Technologies Limited | 15 |
4 |
| Pratt & Whitney Canada Corp. | 4496 |
3 |
| AeroVironment, Inc. | 527 |
3 |
| Yamaha Hatsudoki Kabushiki Kaisha | 2129 |
3 |
| Bell Textron Inc. | 72 |
3 |
| Bell Helicopter Rhode Island, Inc. | 51 |
2 |
| Politecnico di Milano | 834 |
2 |
| PRODRONE Co., Ltd. | 78 |
2 |
| Kopter Group AG | 34 |
2 |
| Other owners | 36 |