- 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: 204
10-year publication summary
|
16
|
35
|
36
|
23
|
33
|
27
|
26
|
13
|
8
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Textron Innovations Inc. | 2195 |
41 |
| Sikorsky Aircraft Corporation | 1123 |
25 |
| Airbus Helicopters | 962 |
17 |
| Bell Helicopter Textron Inc. | 1082 |
16 |
| Airbus Helicopters Deutschland GmbH | 333 |
13 |
| Safran Helicopter Engines | 728 |
8 |
| Lockheed Martin Corporation | 3308 |
7 |
| ETAK Systems, LLC | 74 |
6 |
| Leonardo S.p.A. | 656 |
5 |
| The Boeing Company | 19915 |
4 |
| Bell Textron Rhode Island Inc. | 85 |
4 |
| Hill Group Technologies Limited | 15 |
4 |
| Pratt & Whitney Canada Corp. | 4445 |
3 |
| AeroVironment, Inc. | 518 |
3 |
| Yamaha Hatsudoki Kabushiki Kaisha | 2078 |
3 |
| Bell Textron Inc. | 71 |
3 |
| Bell Helicopter Rhode Island, Inc. | 52 |
2 |
| Politecnico di Milano | 825 |
2 |
| PRODRONE Co., Ltd. | 78 |
2 |
| Kopter Group AG | 34 |
2 |
| Other owners | 34 |